Changes to Get the account balance

the error response's property type changed from object to no type for status 401

the error response's property type changed from object to no type for status 500

the error response's property type changed from object to no type for status 503

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

removed the required property error/message from the response with the 500 status

removed the required property error/message from the response with the 503 status

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

removed the required property error/type from the response with the 500 status

removed the required property error/type from the response with the 503 status

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

removed the optional property error/code from the response with the 500 status

removed the optional property error/code from the response with the 503 status

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

removed the optional property error/param from the response with the 500 status

removed the optional property error/param from the response with the 503 status

api operation id getAccountBalance removed and replaced with get_account_balance

removed the non-success response with the status 400

removed the non-success response with the status 402

removed the non-success response with the status 403

removed the non-success response with the status 410

removed the non-success response with the status 422

removed the non-success response with the status 429

added ErrorBody to the error response property allOf list for the response status 401

added ErrorBody to the error response property allOf list for the response status 500

added ErrorBody to the error response property allOf list for the response status 503