declineOrCancelInvitation
Declines or cancels an invitation based on its type.
This API determines whether the specified invitation is received or sent and performs the corresponding action:
If the invitation is received, it will be declined.
If the invitation is sent, it will be canceled.
Return
A RainbowResult indicating the success or failure of the operation. In case of failure, it will contain error details.
Parameters
invitationId
The unique identifier of the invitation to be processed.