function

Merge multiple message contents.

Merge dictionaries.

Merge many dicts, handling specific scenarios where a key exists in both dictionaries but has a value of None in 'left'. In such cases, the method uses the value from 'right' for that key in the merged dictionary.

Message chunk, which can be concatenated with other Message chunks.

Message for passing the result of executing a tool back to a model.

FunctionMessage are an older version of the ToolMessage schema, and do not contain the tool_call_id field.

The tool_call_id field is used to associate the tool call request with the tool call response. Useful in situations where a chat model is able to request multiple tool calls in parallel.

Function Message chunk.