Changes to Bulk mutate keywords

added required request body

removed the optional property created from the response with the 200 status

the endpoint scheme security AppOAuth was added to the API

added the new optional header request parameter Idempotency-Key

media type application/json was changed to a more specific media type application/problem+json for the response status 400

media type application/json was changed to a more specific media type application/problem+json for the response status 401

media type application/json was changed to a more specific media type application/problem+json for the response status 403

media type application/json was changed to a more specific media type application/problem+json for the response status 404

media type application/json was changed to a more specific media type application/problem+json for the response status 429

added the required property operation to the response with the 200 status

added the required property results to the response with the 200 status