AIMessage

If present, tool calls associated with the message.

If present, tool calls with parsing errors associated with the message.

If present, usage metadata for a message, such as token counts.

This is a standard representation of token usage that is consistent across models.

The type of the message (used for deserialization).

Attributes to be serialized.

Includes all attributes, even if they are derived from other initialization arguments.

Return standard, typed ContentBlock dicts from the message.

If the message has a known model provider, use the provider-specific translator first before falling back to best-effort parsing. For details, see the property on BaseMessage.

Return a pretty representation of the message for display.