Changes to Enviar lote de mensagens

api tag Mensagens added

api tag messages removed

added the non-success response with the status 409

removed the non-success response with the status 402

the messages request property's minItems was increased to 1

the response property error/message became nullable for the status 400

the response property error/message became nullable for the status 422

the response property error/message became nullable for the status 429

the response property error became optional for the status 401

the error response's property type changed from object to string for status 401

the messages/items/cost response's property format changed from float to no format for status 202

the totalCost response's property format changed from float to no format for status 202

removed the required property error/code from the response with the 401 status

removed the required property error/message from the response with the 401 status

removed the optional property error/details from the response with the 401 status

added the new optional header request parameter Idempotency-Key

added the non-success response with the status 402

added the non-success response with the status 403

added the optional property path to the response with the 401 status

added the optional property status to the response with the 401 status

added the optional property timestamp to the response with the 401 status

endpoint added