Fix incorrect code blocks in documentation (#9060)

Fixes incorrect code block syntax in doc strings.

libs/langchain/langchain/document_loaders/blob_loaders/file_system.py

@@ -74,26 +74,23 @@ class FileSystemBlobLoader(BlobLoader):
 
         Examples:
 
-        ... code-block:: python
+            .. code-block:: python
 
                 # Recursively load all text files in a directory.
                 loader = FileSystemBlobLoader("/path/to/directory", glob="**/*.txt")
 
-            # Recursively load all files in a directory, except for py or pyc files.
-            loader = FileSystemBlobLoader(
-                "/path/to/directory",
-                glob="**/*.txt",
-                exclude=["**/*.py", "**/*.pyc"]
-            )
-
                 # Recursively load all non-hidden files in a directory.
                 loader = FileSystemBlobLoader("/path/to/directory", glob="**/[!.]*")
 
                 # Load all files in a directory without recursion.
                 loader = FileSystemBlobLoader("/path/to/directory", glob="*")
 
-            # Load all files in a directory without recursion.
+                # Recursively load all files in a directory, except for py or pyc files.
-
+                loader = FileSystemBlobLoader(
+                    "/path/to/directory",
+                    glob="**/*.txt",
+                    exclude=["**/*.py", "**/*.pyc"]
+                )
         """
         if isinstance(path, Path):
             _path = path

libs/langchain/langchain/document_loaders/generic.py

@@ -39,7 +39,7 @@ class GenericLoader(BaseLoader):
 
         Example instantiations to change which files are loaded:
 
-        ... code-block:: python
+        .. code-block:: python
 
             # Recursively load all text files in a directory.
             loader = GenericLoader.from_filesystem("/path/to/dir", glob="**/*.txt")
@@ -52,7 +52,7 @@ class GenericLoader(BaseLoader):
 
         Example instantiations to change which parser is used:
 
-        ... code-block:: python
+        .. code-block:: python
 
             from langchain.document_loaders.parsers.pdf import PyPDFParser
 

libs/langchain/langchain/document_loaders/parsers/language/language_parser.py

@@ -51,7 +51,7 @@ class LanguageParser(BaseBlobParser):
 
         Example instantiations to manually select the language:
 
-        ... code-block:: python
+        .. code-block:: python
 
             from langchain.text_splitter import Language
 
@@ -64,7 +64,7 @@ class LanguageParser(BaseBlobParser):
 
         Example instantiations to set number of lines threshold:
 
-        ... code-block:: python
+        .. code-block:: python
 
             loader = GenericLoader.from_filesystem(
                 "./code",

libs/langchain/langchain/retrievers/parent_document_retriever.py

@@ -30,7 +30,8 @@ class ParentDocumentRetriever(BaseRetriever):
     chunk.
 
     Examples:
-        ... code-block:: python
+
+        .. code-block:: python
 
             # Imports
             from langchain.vectorstores import Chroma

libs/langchain/langchain/storage/in_memory.py

@@ -16,7 +16,8 @@ class InMemoryStore(BaseStore[str, Any]):
             the key-value pairs.
 
     Examples:
-        ... code-block:: python
+
+        .. code-block:: python
 
             from langchain.storage import InMemoryStore
 

libs/langchain/langchain/tools/base.py

@@ -663,7 +663,9 @@ class StructuredTool(BaseTool):
             The tool
 
         Examples:
-            ... code-block:: python
+
+            .. code-block:: python
+
                 def add(a: int, b: int) -> int:
                     \"\"\"Add two numbers\"\"\"
                     return a + b