Send Typing Indicator
Show a typing indicator in the conversation (iMessage only).
Works for both 1:1 and group chats: a group id is itself a valid typing
target, so every participant sees the indicator. Best-effort: the
indicator may be silently dropped if the chat has no recent activity, the
recipient isn't on iMessage, or it's RCS-routed (RCS carries no composing
state). Auto-expires after a few seconds; no "stop typing" call needed.
Authentication
AuthorizationBearer
Bearer authentication of the form Bearer <token>, where token is your auth token.
Path parameters
conversation_id
Response
Successful Response
conversationId
channel
status
Errors
422
Unprocessable Entity Error

