diff --git a/libs/core/langchain_core/runnables/graph_mermaid.py b/libs/core/langchain_core/runnables/graph_mermaid.py
index fe945dace4d..a27f11d1ff9 100644
--- a/libs/core/langchain_core/runnables/graph_mermaid.py
+++ b/libs/core/langchain_core/runnables/graph_mermaid.py
@@ -6,6 +6,7 @@ import asyncio
 import base64
 import random
 import re
+import string
 import time
 from dataclasses import asdict
 from pathlib import Path
@@ -148,7 +149,7 @@ def draw_mermaid(
                 + "</em></small>"
             )
         node_label = format_dict.get(key, format_dict[default_class_label]).format(
-            _escape_node_label(key), label
+            _to_safe_id(key), label
         )
         return f"{indent}{node_label}\n"
 
@@ -211,8 +212,7 @@ def draw_mermaid(
                 edge_label = " -.-> " if edge.conditional else " --> "
 
             mermaid_graph += (
-                f"\t{_escape_node_label(source)}{edge_label}"
-                f"{_escape_node_label(target)};\n"
+                f"\t{_to_safe_id(source)}{edge_label}{_to_safe_id(target)};\n"
             )
 
         # Recursively add nested subgraphs
@@ -256,9 +256,18 @@ def draw_mermaid(
     return mermaid_graph
 
 
-def _escape_node_label(node_label: str) -> str:
-    """Escapes the node label for Mermaid syntax."""
-    return re.sub(r"[^a-zA-Z-_0-9]", "_", node_label)
+def _to_safe_id(label: str) -> str:
+    """Convert a string into a Mermaid-compatible node id.
+
+    Keep [a-zA-Z0-9_-] characters unchanged.
+    Map every other character -> backslash + lowercase hex codepoint.
+
+    Result is guaranteed to be unique and Mermaid-compatible,
+    so nodes with special characters always render correctly.
+    """
+    allowed = string.ascii_letters + string.digits + "_-"
+    out = [ch if ch in allowed else "\\" + format(ord(ch), "x") for ch in label]
+    return "".join(out)
 
 
 def _generate_mermaid_graph_styles(node_colors: NodeStyles) -> str:
diff --git a/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr b/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr
index a7dcec5b72b..0232a6f9877 100644
--- a/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr
+++ b/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr
@@ -12,16 +12,16 @@
   	parent_2(parent_2)
   	__end__([<p>__end__</p>]):::last
   	__start__ --> parent_1;
-  	child_child_2 --> parent_2;
-  	parent_1 --> child_child_1_grandchild_1;
+  	child\3achild_2 --> parent_2;
+  	parent_1 --> child\3achild_1\3agrandchild_1;
   	parent_2 --> __end__;
   	subgraph child
-  	child_child_2(child_2)
-  	child_child_1_grandchild_2 --> child_child_2;
+  	child\3achild_2(child_2)
+  	child\3achild_1\3agrandchild_2 --> child\3achild_2;
   	subgraph child_1
-  	child_child_1_grandchild_1(grandchild_1)
-  	child_child_1_grandchild_2(grandchild_2<hr/><small><em>__interrupt = before</em></small>)
-  	child_child_1_grandchild_1 --> child_child_1_grandchild_2;
+  	child\3achild_1\3agrandchild_1(grandchild_1)
+  	child\3achild_1\3agrandchild_2(grandchild_2<hr/><small><em>__interrupt = before</em></small>)
+  	child\3achild_1\3agrandchild_1 --> child\3achild_1\3agrandchild_2;
   	end
   	end
   	classDef default fill:#f2f0ff,line-height:1.2
@@ -34,13 +34,13 @@
   '''
   graph TD;
   	PromptInput --> PromptTemplate_1;
-  	Parallel_llm1_llm2_Input --> FakeListLLM_1;
-  	FakeListLLM_1 --> Parallel_llm1_llm2_Output;
-  	Parallel_llm1_llm2_Input --> FakeListLLM_2;
-  	FakeListLLM_2 --> Parallel_llm1_llm2_Output;
-  	PromptTemplate_1 --> Parallel_llm1_llm2_Input;
+  	Parallel\3cllm1\2cllm2\3eInput --> FakeListLLM_1;
+  	FakeListLLM_1 --> Parallel\3cllm1\2cllm2\3eOutput;
+  	Parallel\3cllm1\2cllm2\3eInput --> FakeListLLM_2;
+  	FakeListLLM_2 --> Parallel\3cllm1\2cllm2\3eOutput;
+  	PromptTemplate_1 --> Parallel\3cllm1\2cllm2\3eInput;
   	PromptTemplate_2 --> PromptTemplateOutput;
-  	Parallel_llm1_llm2_Output --> PromptTemplate_2;
+  	Parallel\3cllm1\2cllm2\3eOutput --> PromptTemplate_2;
   
   '''
 # ---
@@ -65,6 +65,27 @@
   
   '''
 # ---
+# name: test_graph_mermaid_special_chars[mermaid]
+  '''
+  ---
+  config:
+    flowchart:
+      curve: linear
+  ---
+  graph TD;
+  	__start__([<p>__start__</p>]):::first
+  	\5f00\59cb(开始)
+  	\7ed3\675f(结束)
+  	__end__([<p>__end__</p>]):::last
+  	__start__ --> \5f00\59cb;
+  	\5f00\59cb --> \7ed3\675f;
+  	\7ed3\675f --> __end__;
+  	classDef default fill:#f2f0ff,line-height:1.2
+  	classDef first fill-opacity:0
+  	classDef last fill:#bfb6fc
+  
+  '''
+# ---
 # name: test_graph_sequence[ascii]
   '''
               +-------------+              
@@ -1902,15 +1923,15 @@
   graph TD;
   	PromptInput --> PromptTemplate;
   	PromptTemplate --> FakeListLLM;
-  	Parallel_as_list_as_str_Input --> CommaSeparatedListOutputParser;
-  	CommaSeparatedListOutputParser --> Parallel_as_list_as_str_Output;
+  	Parallel\3cas_list\2cas_str\3eInput --> CommaSeparatedListOutputParser;
+  	CommaSeparatedListOutputParser --> Parallel\3cas_list\2cas_str\3eOutput;
   	conditional_str_parser_input --> StrOutputParser;
   	StrOutputParser --> conditional_str_parser_output;
   	conditional_str_parser_input --> XMLOutputParser;
   	XMLOutputParser --> conditional_str_parser_output;
-  	Parallel_as_list_as_str_Input --> conditional_str_parser_input;
-  	conditional_str_parser_output --> Parallel_as_list_as_str_Output;
-  	FakeListLLM --> Parallel_as_list_as_str_Input;
+  	Parallel\3cas_list\2cas_str\3eInput --> conditional_str_parser_input;
+  	conditional_str_parser_output --> Parallel\3cas_list\2cas_str\3eOutput;
+  	FakeListLLM --> Parallel\3cas_list\2cas_str\3eInput;
   
   '''
 # ---
@@ -1925,8 +1946,8 @@
   	PromptInput([PromptInput]):::first
   	PromptTemplate(PromptTemplate)
   	FakeListLLM(FakeListLLM)
-  	Parallel_as_list_as_str_Input(Parallel<as_list,as_str>Input)
-  	Parallel_as_list_as_str_Output([Parallel<as_list,as_str>Output]):::last
+  	Parallel\3cas_list\2cas_str\3eInput(Parallel<as_list,as_str>Input)
+  	Parallel\3cas_list\2cas_str\3eOutput([Parallel<as_list,as_str>Output]):::last
   	CommaSeparatedListOutputParser(CommaSeparatedListOutputParser)
   	conditional_str_parser_input(conditional_str_parser_input)
   	conditional_str_parser_output(conditional_str_parser_output)
@@ -1934,15 +1955,15 @@
   	XMLOutputParser(XMLOutputParser)
   	PromptInput --> PromptTemplate;
   	PromptTemplate --> FakeListLLM;
-  	Parallel_as_list_as_str_Input --> CommaSeparatedListOutputParser;
-  	CommaSeparatedListOutputParser --> Parallel_as_list_as_str_Output;
+  	Parallel\3cas_list\2cas_str\3eInput --> CommaSeparatedListOutputParser;
+  	CommaSeparatedListOutputParser --> Parallel\3cas_list\2cas_str\3eOutput;
   	conditional_str_parser_input --> StrOutputParser;
   	StrOutputParser --> conditional_str_parser_output;
   	conditional_str_parser_input --> XMLOutputParser;
   	XMLOutputParser --> conditional_str_parser_output;
-  	Parallel_as_list_as_str_Input --> conditional_str_parser_input;
-  	conditional_str_parser_output --> Parallel_as_list_as_str_Output;
-  	FakeListLLM --> Parallel_as_list_as_str_Input;
+  	Parallel\3cas_list\2cas_str\3eInput --> conditional_str_parser_input;
+  	conditional_str_parser_output --> Parallel\3cas_list\2cas_str\3eOutput;
+  	FakeListLLM --> Parallel\3cas_list\2cas_str\3eInput;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -2000,20 +2021,20 @@
   	outer_2(outer_2)
   	__end__([<p>__end__</p>]):::last
   	__start__ --> outer_1;
-  	inner_1_inner_2 --> outer_2;
-  	inner_2_inner_2 --> outer_2;
-  	outer_1 --> inner_1_inner_1;
-  	outer_1 --> inner_2_inner_1;
+  	inner_1\3ainner_2 --> outer_2;
+  	inner_2\3ainner_2 --> outer_2;
+  	outer_1 --> inner_1\3ainner_1;
+  	outer_1 --> inner_2\3ainner_1;
   	outer_2 --> __end__;
   	subgraph inner_1
-  	inner_1_inner_1(inner_1)
-  	inner_1_inner_2(inner_2<hr/><small><em>__interrupt = before</em></small>)
-  	inner_1_inner_1 --> inner_1_inner_2;
+  	inner_1\3ainner_1(inner_1)
+  	inner_1\3ainner_2(inner_2<hr/><small><em>__interrupt = before</em></small>)
+  	inner_1\3ainner_1 --> inner_1\3ainner_2;
   	end
   	subgraph inner_2
-  	inner_2_inner_1(inner_1)
-  	inner_2_inner_2(inner_2)
-  	inner_2_inner_1 --> inner_2_inner_2;
+  	inner_2\3ainner_1(inner_1)
+  	inner_2\3ainner_2(inner_2)
+  	inner_2\3ainner_1 --> inner_2\3ainner_2;
   	end
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -2031,10 +2052,10 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	__end__([<p>__end__</p>]):::last
-  	__start__ --> sub_meow;
-  	sub_meow --> __end__;
+  	__start__ --> sub\3ameow;
+  	sub\3ameow --> __end__;
   	subgraph sub
-  	sub_meow(meow)
+  	sub\3ameow(meow)
   	end
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -2117,19 +2138,19 @@
   	parent_2(parent_2)
   	__end__([<p>__end__</p>]):::last
   	__start__ --> parent_1;
-  	child_child_2 --> parent_2;
-  	parent_1 --> child_child_1_grandchild_1;
+  	child\3achild_2 --> parent_2;
+  	parent_1 --> child\3achild_1\3agrandchild_1;
   	parent_2 --> __end__;
   	subgraph child
-  	child_child_2(child_2)
-  	child_child_1_grandchild_2 --> child_child_2;
+  	child\3achild_2(child_2)
+  	child\3achild_1\3agrandchild_2 --> child\3achild_2;
   	subgraph child_1
-  	child_child_1_grandchild_1(grandchild_1)
-  	child_child_1_grandchild_2(grandchild_2<hr/><small><em>__interrupt = before</em></small>)
-  	child_child_1_grandchild_1_greatgrandchild --> child_child_1_grandchild_2;
+  	child\3achild_1\3agrandchild_1(grandchild_1)
+  	child\3achild_1\3agrandchild_2(grandchild_2<hr/><small><em>__interrupt = before</em></small>)
+  	child\3achild_1\3agrandchild_1\3agreatgrandchild --> child\3achild_1\3agrandchild_2;
   	subgraph grandchild_1
-  	child_child_1_grandchild_1_greatgrandchild(greatgrandchild)
-  	child_child_1_grandchild_1 --> child_child_1_grandchild_1_greatgrandchild;
+  	child\3achild_1\3agrandchild_1\3agreatgrandchild(greatgrandchild)
+  	child\3achild_1\3agrandchild_1 --> child\3achild_1\3agrandchild_1\3agreatgrandchild;
   	end
   	end
   	end
diff --git a/libs/core/tests/unit_tests/runnables/test_graph.py b/libs/core/tests/unit_tests/runnables/test_graph.py
index 398ae45e66e..1bbef74e90f 100644
--- a/libs/core/tests/unit_tests/runnables/test_graph.py
+++ b/libs/core/tests/unit_tests/runnables/test_graph.py
@@ -15,8 +15,8 @@ from langchain_core.runnables import RunnableConfig
 from langchain_core.runnables.base import Runnable
 from langchain_core.runnables.graph import Edge, Graph, MermaidDrawMethod, Node
 from langchain_core.runnables.graph_mermaid import (
-    _escape_node_label,
     _render_mermaid_using_api,
+    _to_safe_id,
     draw_mermaid_png,
 )
 from langchain_core.utils.pydantic import PYDANTIC_VERSION
@@ -521,12 +521,12 @@ def test_runnable_get_graph_with_invalid_output_type() -> None:
     runnable.get_graph()
 
 
-def test_graph_mermaid_escape_node_label() -> None:
+def test_graph_mermaid_to_safe_id() -> None:
     """Test that node labels are correctly preprocessed for draw_mermaid."""
-    assert _escape_node_label("foo") == "foo"
-    assert _escape_node_label("foo-bar") == "foo-bar"
-    assert _escape_node_label("foo_1") == "foo_1"
-    assert _escape_node_label("#foo*&!") == "_foo___"
+    assert _to_safe_id("foo") == "foo"
+    assert _to_safe_id("foo-bar") == "foo-bar"
+    assert _to_safe_id("foo_1") == "foo_1"
+    assert _to_safe_id("#foo*&!") == "\\23foo\\2a\\26\\21"
 
 
 def test_graph_mermaid_duplicate_nodes(snapshot: SnapshotAssertion) -> None:
@@ -653,3 +653,24 @@ def test_graph_draw_mermaid_png_base_url() -> None:
         args, kwargs = mock_get.call_args
         url = args[0]  # First argument to request.get is the URL
         assert url.startswith(custom_url)
+
+
+def test_graph_mermaid_special_chars(snapshot: SnapshotAssertion) -> None:
+    graph = Graph(
+        nodes={
+            "__start__": Node(
+                id="__start__", name="__start__", data=BaseModel, metadata=None
+            ),
+            "开始": Node(id="开始", name="开始", data=BaseModel, metadata=None),
+            "结束": Node(id="结束", name="结束", data=BaseModel, metadata=None),
+            "__end__": Node(
+                id="__end__", name="__end__", data=BaseModel, metadata=None
+            ),
+        },
+        edges=[
+            Edge(source="__start__", target="开始", data=None, conditional=False),
+            Edge(source="开始", target="结束", data=None, conditional=False),
+            Edge(source="结束", target="__end__", data=None, conditional=False),
+        ],
+    )
+    assert graph.draw_mermaid() == snapshot(name="mermaid")
diff --git a/libs/langchain_v1/tests/unit_tests/agents/__snapshots__/test_middleware_agent.ambr b/libs/langchain_v1/tests/unit_tests/agents/__snapshots__/test_middleware_agent.ambr
index c7ab09b722b..f07cc34c1af 100644
--- a/libs/langchain_v1/tests/unit_tests/agents/__snapshots__/test_middleware_agent.ambr
+++ b/libs/langchain_v1/tests/unit_tests/agents/__snapshots__/test_middleware_agent.ambr
@@ -28,11 +28,11 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopOne_before_model(NoopOne.before_model)
+  	NoopOne\2ebefore_model(NoopOne.before_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopOne_before_model -.-> __end__;
-  	NoopOne_before_model -.-> model_request;
-  	__start__ --> NoopOne_before_model;
+  	NoopOne\2ebefore_model -.-> __end__;
+  	NoopOne\2ebefore_model -.-> model_request;
+  	__start__ --> NoopOne\2ebefore_model;
   	model_request --> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -50,15 +50,15 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopTen_before_model(NoopTen.before_model)
-  	NoopTen_after_model(NoopTen.after_model)
+  	NoopTen\2ebefore_model(NoopTen.before_model)
+  	NoopTen\2eafter_model(NoopTen.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopTen_after_model -.-> NoopTen_before_model;
-  	NoopTen_after_model -.-> __end__;
-  	NoopTen_before_model -.-> __end__;
-  	NoopTen_before_model -.-> model_request;
-  	__start__ --> NoopTen_before_model;
-  	model_request --> NoopTen_after_model;
+  	NoopTen\2eafter_model -.-> NoopTen\2ebefore_model;
+  	NoopTen\2eafter_model -.-> __end__;
+  	NoopTen\2ebefore_model -.-> __end__;
+  	NoopTen\2ebefore_model -.-> model_request;
+  	__start__ --> NoopTen\2ebefore_model;
+  	model_request --> NoopTen\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -75,23 +75,23 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopTen_before_model(NoopTen.before_model)
-  	NoopTen_after_model(NoopTen.after_model)
-  	NoopEleven_before_model(NoopEleven.before_model)
-  	NoopEleven_after_model(NoopEleven.after_model)
+  	NoopTen\2ebefore_model(NoopTen.before_model)
+  	NoopTen\2eafter_model(NoopTen.after_model)
+  	NoopEleven\2ebefore_model(NoopEleven.before_model)
+  	NoopEleven\2eafter_model(NoopEleven.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEleven_after_model -.-> NoopTen_after_model;
-  	NoopEleven_after_model -.-> NoopTen_before_model;
-  	NoopEleven_after_model -.-> __end__;
-  	NoopEleven_before_model -.-> NoopTen_before_model;
-  	NoopEleven_before_model -.-> __end__;
-  	NoopEleven_before_model -.-> model_request;
-  	NoopTen_after_model -.-> NoopTen_before_model;
-  	NoopTen_after_model -.-> __end__;
-  	NoopTen_before_model -.-> NoopEleven_before_model;
-  	NoopTen_before_model -.-> __end__;
-  	__start__ --> NoopTen_before_model;
-  	model_request --> NoopEleven_after_model;
+  	NoopEleven\2eafter_model -.-> NoopTen\2eafter_model;
+  	NoopEleven\2eafter_model -.-> NoopTen\2ebefore_model;
+  	NoopEleven\2eafter_model -.-> __end__;
+  	NoopEleven\2ebefore_model -.-> NoopTen\2ebefore_model;
+  	NoopEleven\2ebefore_model -.-> __end__;
+  	NoopEleven\2ebefore_model -.-> model_request;
+  	NoopTen\2eafter_model -.-> NoopTen\2ebefore_model;
+  	NoopTen\2eafter_model -.-> __end__;
+  	NoopTen\2ebefore_model -.-> NoopEleven\2ebefore_model;
+  	NoopTen\2ebefore_model -.-> __end__;
+  	__start__ --> NoopTen\2ebefore_model;
+  	model_request --> NoopEleven\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -108,15 +108,15 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopOne_before_model(NoopOne.before_model)
-  	NoopTwo_before_model(NoopTwo.before_model)
+  	NoopOne\2ebefore_model(NoopOne.before_model)
+  	NoopTwo\2ebefore_model(NoopTwo.before_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopOne_before_model -.-> NoopTwo_before_model;
-  	NoopOne_before_model -.-> __end__;
-  	NoopTwo_before_model -.-> NoopOne_before_model;
-  	NoopTwo_before_model -.-> __end__;
-  	NoopTwo_before_model -.-> model_request;
-  	__start__ --> NoopOne_before_model;
+  	NoopOne\2ebefore_model -.-> NoopTwo\2ebefore_model;
+  	NoopOne\2ebefore_model -.-> __end__;
+  	NoopTwo\2ebefore_model -.-> NoopOne\2ebefore_model;
+  	NoopTwo\2ebefore_model -.-> __end__;
+  	NoopTwo\2ebefore_model -.-> model_request;
+  	__start__ --> NoopOne\2ebefore_model;
   	model_request --> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -134,19 +134,19 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopOne_before_model(NoopOne.before_model)
-  	NoopTwo_before_model(NoopTwo.before_model)
-  	NoopThree_before_model(NoopThree.before_model)
+  	NoopOne\2ebefore_model(NoopOne.before_model)
+  	NoopTwo\2ebefore_model(NoopTwo.before_model)
+  	NoopThree\2ebefore_model(NoopThree.before_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopOne_before_model -.-> NoopTwo_before_model;
-  	NoopOne_before_model -.-> __end__;
-  	NoopThree_before_model -.-> NoopOne_before_model;
-  	NoopThree_before_model -.-> __end__;
-  	NoopThree_before_model -.-> model_request;
-  	NoopTwo_before_model -.-> NoopOne_before_model;
-  	NoopTwo_before_model -.-> NoopThree_before_model;
-  	NoopTwo_before_model -.-> __end__;
-  	__start__ --> NoopOne_before_model;
+  	NoopOne\2ebefore_model -.-> NoopTwo\2ebefore_model;
+  	NoopOne\2ebefore_model -.-> __end__;
+  	NoopThree\2ebefore_model -.-> NoopOne\2ebefore_model;
+  	NoopThree\2ebefore_model -.-> __end__;
+  	NoopThree\2ebefore_model -.-> model_request;
+  	NoopTwo\2ebefore_model -.-> NoopOne\2ebefore_model;
+  	NoopTwo\2ebefore_model -.-> NoopThree\2ebefore_model;
+  	NoopTwo\2ebefore_model -.-> __end__;
+  	__start__ --> NoopOne\2ebefore_model;
   	model_request --> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -164,12 +164,12 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopFour_after_model(NoopFour.after_model)
+  	NoopFour\2eafter_model(NoopFour.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopFour_after_model -.-> __end__;
-  	NoopFour_after_model -.-> model_request;
+  	NoopFour\2eafter_model -.-> __end__;
+  	NoopFour\2eafter_model -.-> model_request;
   	__start__ --> model_request;
-  	model_request --> NoopFour_after_model;
+  	model_request --> NoopFour\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -186,16 +186,16 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopFour_after_model(NoopFour.after_model)
-  	NoopFive_after_model(NoopFive.after_model)
+  	NoopFour\2eafter_model(NoopFour.after_model)
+  	NoopFive\2eafter_model(NoopFive.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopFive_after_model -.-> NoopFour_after_model;
-  	NoopFive_after_model -.-> __end__;
-  	NoopFive_after_model -.-> model_request;
-  	NoopFour_after_model -.-> __end__;
-  	NoopFour_after_model -.-> model_request;
+  	NoopFive\2eafter_model -.-> NoopFour\2eafter_model;
+  	NoopFive\2eafter_model -.-> __end__;
+  	NoopFive\2eafter_model -.-> model_request;
+  	NoopFour\2eafter_model -.-> __end__;
+  	NoopFour\2eafter_model -.-> model_request;
   	__start__ --> model_request;
-  	model_request --> NoopFive_after_model;
+  	model_request --> NoopFive\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -212,20 +212,20 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopFour_after_model(NoopFour.after_model)
-  	NoopFive_after_model(NoopFive.after_model)
-  	NoopSix_after_model(NoopSix.after_model)
+  	NoopFour\2eafter_model(NoopFour.after_model)
+  	NoopFive\2eafter_model(NoopFive.after_model)
+  	NoopSix\2eafter_model(NoopSix.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopFive_after_model -.-> NoopFour_after_model;
-  	NoopFive_after_model -.-> __end__;
-  	NoopFive_after_model -.-> model_request;
-  	NoopFour_after_model -.-> __end__;
-  	NoopFour_after_model -.-> model_request;
-  	NoopSix_after_model -.-> NoopFive_after_model;
-  	NoopSix_after_model -.-> __end__;
-  	NoopSix_after_model -.-> model_request;
+  	NoopFive\2eafter_model -.-> NoopFour\2eafter_model;
+  	NoopFive\2eafter_model -.-> __end__;
+  	NoopFive\2eafter_model -.-> model_request;
+  	NoopFour\2eafter_model -.-> __end__;
+  	NoopFour\2eafter_model -.-> model_request;
+  	NoopSix\2eafter_model -.-> NoopFive\2eafter_model;
+  	NoopSix\2eafter_model -.-> __end__;
+  	NoopSix\2eafter_model -.-> model_request;
   	__start__ --> model_request;
-  	model_request --> NoopSix_after_model;
+  	model_request --> NoopSix\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -242,15 +242,15 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_before_model -.-> __end__;
-  	NoopSeven_before_model -.-> model_request;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopSeven_after_model;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> model_request;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopSeven\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -267,23 +267,23 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopEight_before_model -.-> model_request;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopEight_after_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> model_request;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopEight\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -300,31 +300,31 @@
   graph TD;
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
-  	NoopNine_before_model(NoopNine.before_model)
-  	NoopNine_after_model(NoopNine.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
+  	NoopNine\2ebefore_model(NoopNine.before_model)
+  	NoopNine\2eafter_model(NoopNine.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_before_model -.-> NoopNine_before_model;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopNine_after_model -.-> NoopEight_after_model;
-  	NoopNine_after_model -.-> NoopSeven_before_model;
-  	NoopNine_after_model -.-> __end__;
-  	NoopNine_before_model -.-> NoopSeven_before_model;
-  	NoopNine_before_model -.-> __end__;
-  	NoopNine_before_model -.-> model_request;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopNine_after_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> NoopNine\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopNine\2eafter_model -.-> NoopEight\2eafter_model;
+  	NoopNine\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopNine\2eafter_model -.-> __end__;
+  	NoopNine\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopNine\2ebefore_model -.-> __end__;
+  	NoopNine\2ebefore_model -.-> model_request;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopNine\2eafter_model;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
   	classDef last fill:#bfb6fc
@@ -342,28 +342,28 @@
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
   	tools(tools)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_after_model -.-> tools;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopEight_before_model -.-> model_request;
-  	NoopEight_before_model -.-> tools;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_after_model -.-> tools;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	NoopSeven_before_model -.-> tools;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopEight_after_model;
-  	tools -.-> NoopSeven_before_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2eafter_model -.-> tools;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> model_request;
+  	NoopEight\2ebefore_model -.-> tools;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2eafter_model -.-> tools;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> tools;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopEight\2eafter_model;
+  	tools -.-> NoopSeven\2ebefore_model;
   	tools -.-> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -382,28 +382,28 @@
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
   	tools(tools)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_after_model -.-> tools;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopEight_before_model -.-> model_request;
-  	NoopEight_before_model -.-> tools;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_after_model -.-> tools;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	NoopSeven_before_model -.-> tools;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopEight_after_model;
-  	tools -.-> NoopSeven_before_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2eafter_model -.-> tools;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> model_request;
+  	NoopEight\2ebefore_model -.-> tools;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2eafter_model -.-> tools;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> tools;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopEight\2eafter_model;
+  	tools -.-> NoopSeven\2ebefore_model;
   	tools -.-> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -422,28 +422,28 @@
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
   	tools(tools)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_after_model -.-> tools;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopEight_before_model -.-> model_request;
-  	NoopEight_before_model -.-> tools;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_after_model -.-> tools;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	NoopSeven_before_model -.-> tools;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopEight_after_model;
-  	tools -.-> NoopSeven_before_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2eafter_model -.-> tools;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> model_request;
+  	NoopEight\2ebefore_model -.-> tools;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2eafter_model -.-> tools;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> tools;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopEight\2eafter_model;
+  	tools -.-> NoopSeven\2ebefore_model;
   	tools -.-> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -462,28 +462,28 @@
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
   	tools(tools)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_after_model -.-> tools;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopEight_before_model -.-> model_request;
-  	NoopEight_before_model -.-> tools;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_after_model -.-> tools;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	NoopSeven_before_model -.-> tools;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopEight_after_model;
-  	tools -.-> NoopSeven_before_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2eafter_model -.-> tools;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> model_request;
+  	NoopEight\2ebefore_model -.-> tools;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2eafter_model -.-> tools;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> tools;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopEight\2eafter_model;
+  	tools -.-> NoopSeven\2ebefore_model;
   	tools -.-> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0
@@ -502,28 +502,28 @@
   	__start__([<p>__start__</p>]):::first
   	model_request(model_request)
   	tools(tools)
-  	NoopSeven_before_model(NoopSeven.before_model)
-  	NoopSeven_after_model(NoopSeven.after_model)
-  	NoopEight_before_model(NoopEight.before_model)
-  	NoopEight_after_model(NoopEight.after_model)
+  	NoopSeven\2ebefore_model(NoopSeven.before_model)
+  	NoopSeven\2eafter_model(NoopSeven.after_model)
+  	NoopEight\2ebefore_model(NoopEight.before_model)
+  	NoopEight\2eafter_model(NoopEight.after_model)
   	__end__([<p>__end__</p>]):::last
-  	NoopEight_after_model -.-> NoopSeven_after_model;
-  	NoopEight_after_model -.-> NoopSeven_before_model;
-  	NoopEight_after_model -.-> __end__;
-  	NoopEight_after_model -.-> tools;
-  	NoopEight_before_model -.-> NoopSeven_before_model;
-  	NoopEight_before_model -.-> __end__;
-  	NoopEight_before_model -.-> model_request;
-  	NoopEight_before_model -.-> tools;
-  	NoopSeven_after_model -.-> NoopSeven_before_model;
-  	NoopSeven_after_model -.-> __end__;
-  	NoopSeven_after_model -.-> tools;
-  	NoopSeven_before_model -.-> NoopEight_before_model;
-  	NoopSeven_before_model -.-> __end__;
-  	NoopSeven_before_model -.-> tools;
-  	__start__ --> NoopSeven_before_model;
-  	model_request --> NoopEight_after_model;
-  	tools -.-> NoopSeven_before_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2eafter_model;
+  	NoopEight\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2eafter_model -.-> __end__;
+  	NoopEight\2eafter_model -.-> tools;
+  	NoopEight\2ebefore_model -.-> NoopSeven\2ebefore_model;
+  	NoopEight\2ebefore_model -.-> __end__;
+  	NoopEight\2ebefore_model -.-> model_request;
+  	NoopEight\2ebefore_model -.-> tools;
+  	NoopSeven\2eafter_model -.-> NoopSeven\2ebefore_model;
+  	NoopSeven\2eafter_model -.-> __end__;
+  	NoopSeven\2eafter_model -.-> tools;
+  	NoopSeven\2ebefore_model -.-> NoopEight\2ebefore_model;
+  	NoopSeven\2ebefore_model -.-> __end__;
+  	NoopSeven\2ebefore_model -.-> tools;
+  	__start__ --> NoopSeven\2ebefore_model;
+  	model_request --> NoopEight\2eafter_model;
+  	tools -.-> NoopSeven\2ebefore_model;
   	tools -.-> __end__;
   	classDef default fill:#f2f0ff,line-height:1.2
   	classDef first fill-opacity:0