OptionalargumentsThe arguments of the function call (for function_call items).
Optionalcall_The ID of the function call (for function_call and function_call_output
items). If passed on a function_call_output item, the server will check that a
function_call item with the same ID exists in the conversation history.
OptionalcontentThe content of the message, applicable for message items.
system support only input_text contentuser support input_text and input_audio contentassistant support text content.OptionalidFor an item of type (message | function_call | function_call_output) this
field allows the client to assign the unique ID of the item. It is not required
because the server will generate one if not provided.
For an item of type item_reference, this field is required and is a reference
to any item that has previously existed in the conversation.
OptionalnameThe name of the function being called (for function_call items).
OptionalobjectIdentifier for the API object being returned - always realtime.item.
OptionaloutputThe output of the function call (for function_call_output items).
OptionalroleThe role of the message sender (user, assistant, system), only applicable
for message items.
OptionalstatusThe status of the item (completed, incomplete, in_progress). These have no
effect on the conversation, but are accepted for consistency with the
conversation.item.created event.
OptionaltypeThe type of the item (message, function_call, function_call_output,
item_reference).
The item to add to the conversation.