GET
GET
PATCH
GET
GET
GET
PUT
DELETE
GET
DELETE
GET
GET
POST
GET
PATCH
DELETE
GET
PATCH
GET
GET
POST
POST
GET
GET
POST
DELETE
GET
GET
GET
DELETE
GET
PUT
DELETE
GET
PUT
DELETE
GET
GET
PUT
DELETE
GET
GET
PATCH
GET
GET
The return hash contains failed_at
and failed_reason
fields which represent the time at which the invitation failed and the reason for the failure.