diff --git a/libs/langchain/langchain/document_loaders/blob_loaders/file_system.py b/libs/langchain/langchain/document_loaders/blob_loaders/file_system.py
index f4d7ec4ce96..aecc1d62f19 100644
--- a/libs/langchain/langchain/document_loaders/blob_loaders/file_system.py
+++ b/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 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="**/[!.]*")
 
-            # 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.
+                # Load all files in a directory without recursion.
+                loader = FileSystemBlobLoader("/path/to/directory", glob="*")
 
+                # 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
diff --git a/libs/langchain/langchain/document_loaders/generic.py b/libs/langchain/langchain/document_loaders/generic.py
index 0625507b278..7dbfc6e1e64 100644
--- a/libs/langchain/langchain/document_loaders/generic.py
+++ b/libs/langchain/langchain/document_loaders/generic.py
@@ -22,7 +22,7 @@ class GenericLoader(BaseLoader):
 
     Examples:
 
-        .. code-block:: python
+       .. code-block:: python
 
         from langchain.document_loaders import GenericLoader
         from langchain.document_loaders.blob_loaders import FileSystemBlobLoader
@@ -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
 
diff --git a/libs/langchain/langchain/document_loaders/parsers/language/language_parser.py b/libs/langchain/langchain/document_loaders/parsers/language/language_parser.py
index 3b3928cd68c..12a11380c8f 100644
--- a/libs/langchain/langchain/document_loaders/parsers/language/language_parser.py
+++ b/libs/langchain/langchain/document_loaders/parsers/language/language_parser.py
@@ -35,7 +35,7 @@ class LanguageParser(BaseBlobParser):
 
     Examples:
 
-        .. code-block:: python
+       .. code-block:: python
 
             from langchain.text_splitter.Language
             from langchain.document_loaders.generic import GenericLoader
@@ -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",
diff --git a/libs/langchain/langchain/retrievers/parent_document_retriever.py b/libs/langchain/langchain/retrievers/parent_document_retriever.py
index ce690671344..f427b1f7b4b 100644
--- a/libs/langchain/langchain/retrievers/parent_document_retriever.py
+++ b/libs/langchain/langchain/retrievers/parent_document_retriever.py
@@ -30,31 +30,32 @@ class ParentDocumentRetriever(BaseRetriever):
     chunk.
 
     Examples:
-        ... code-block:: python
 
-        # Imports
-        from langchain.vectorstores import Chroma
-        from langchain.embeddings import OpenAIEmbeddings
-        from langchain.text_splitter import RecursiveCharacterTextSplitter
-        from langchain.storage import InMemoryStore
+        .. code-block:: python
 
-        # This text splitter is used to create the parent documents
-        parent_splitter = RecursiveCharacterTextSplitter(chunk_size=2000)
-        # This text splitter is used to create the child documents
-        # It should create documents smaller than the parent
-        child_splitter = RecursiveCharacterTextSplitter(chunk_size=400)
-        # The vectorstore to use to index the child chunks
-        vectorstore = Chroma(embedding_function=OpenAIEmbeddings())
-        # The storage layer for the parent documents
-        store = InMemoryStore()
+            # Imports
+            from langchain.vectorstores import Chroma
+            from langchain.embeddings import OpenAIEmbeddings
+            from langchain.text_splitter import RecursiveCharacterTextSplitter
+            from langchain.storage import InMemoryStore
 
-        # Initialize the retriever
-        retriever = ParentDocumentRetriever(
-            vectorstore=vectorstore,
-            docstore=store,
-            child_splitter=child_splitter,
-            parent_splitter=parent_splitter,
-        )
+            # This text splitter is used to create the parent documents
+            parent_splitter = RecursiveCharacterTextSplitter(chunk_size=2000)
+            # This text splitter is used to create the child documents
+            # It should create documents smaller than the parent
+            child_splitter = RecursiveCharacterTextSplitter(chunk_size=400)
+            # The vectorstore to use to index the child chunks
+            vectorstore = Chroma(embedding_function=OpenAIEmbeddings())
+            # The storage layer for the parent documents
+            store = InMemoryStore()
+
+            # Initialize the retriever
+            retriever = ParentDocumentRetriever(
+                vectorstore=vectorstore,
+                docstore=store,
+                child_splitter=child_splitter,
+                parent_splitter=parent_splitter,
+            )
     """
 
     vectorstore: VectorStore
diff --git a/libs/langchain/langchain/storage/in_memory.py b/libs/langchain/langchain/storage/in_memory.py
index 906d08e853b..3350f75f4d4 100644
--- a/libs/langchain/langchain/storage/in_memory.py
+++ b/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
 
diff --git a/libs/langchain/langchain/tools/base.py b/libs/langchain/langchain/tools/base.py
index f8607d51443..732940bd065 100644
--- a/libs/langchain/langchain/tools/base.py
+++ b/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