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Bagatur 2024-08-30 13:31:47 -07:00
parent 9bf6215571
commit eb9170a121
1 changed files with 11 additions and 11 deletions
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22
libs/core/langchain_core/messages/utils.py
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@ -951,33 +951,33 @@ def format_messages(
messages: Message-like object or iterable of objects whose contents are messages: Message-like object or iterable of objects whose contents are
in OpenAI, Anthropic, Bedrock Converse, or VertexAI formats. in OpenAI, Anthropic, Bedrock Converse, or VertexAI formats.
format: Output message format: format: Output message format:
- "langchain-openai": - "langchain-openai":
BaseMessages with OpenAI-style contents. BaseMessages with OpenAI-style contents.
- "langchain-anthropic": - "langchain-anthropic":
BaseMessages with Anthropic-style contents. BaseMessages with Anthropic-style contents.
text_format: How to format string or text block contents: text_format: How to format string or text block contents:
- "string": - "string":
If a message has a string content, this is left as a string. If If a message has a string content, this is left as a string. If
a message has content blocks that are all of type 'text', these are a message has content blocks that are all of type 'text', these are
joined with a newline to make a single string. If a message has joined with a newline to make a single string. If a message has
content blocks and at least one isn't of type 'text', then content blocks and at least one isn't of type 'text', then
all blocks are left as dicts. all blocks are left as dicts.
- "block": - "block":
If a message has a string content, this is turned into a list If a message has a string content, this is turned into a list
with a single content block of type 'text'. If a message has content with a single content block of type 'text'. If a message has content
blocks these are left as is. blocks these are left as is.
Returns: Returns:
The return type depends on the input type: The return type depends on the input type:
- BaseMessage: - BaseMessage:
If a single message-like object is passed in, a BaseMessage is If a single message-like object is passed in, a BaseMessage is
returned. returned.
- List[BaseMessage]: - List[BaseMessage]:
If a sequence of message-like objects are passed in, a list If a sequence of message-like objects are passed in, a list
of BaseMessages are returned. of BaseMessages are returned.
- Runnable: - Runnable:
If no messages are passed in, a Runnable is generated that formats If no messages are passed in, a Runnable is generated that formats
messages (per the above) when invoked. messages (per the above) when invoked.
@ -1044,14 +1044,14 @@ def format_messages(
.. dropdown:: Streaming .. dropdown:: Streaming
:open: :open:
.. code-block:: python .. code-block:: python
from langchain_core.messages import format_messages from langchain_core.messages import format_messages
from langchain.chat_models import init_chat_model from langchain.chat_models import init_chat_model
formatter = format_messages(format="langchain-openai", text_format="string") formatter = format_messages(format="langchain-openai", text_format="string")
def multiply(a: int, b: int) -> int: def multiply(a: int, b: int) -> int:
'''Return product of a and b.''' '''Return product of a and b.'''
return a * b return a * b