Array ( [message] => Validation errors [errors] => Array ( [0] => Array ( [code] => INVALID_CONTENT_TYPE [message] => Invalid Content-Type (application/x-www-form-urlencoded). These are supported: application/json [path] => Array ( ) ) [1] => Array ( [code] => INVALID_REQUEST_PARAMETER [errors] => Array ( [0] => Array ( [code] => INVALID_TYPE [message] => Expected type array but found type object [path] => Array ( ) ) ) [in] => body [message] => Invalid parameter (call_flow): Value failed JSON Schema validation [name] => call_flow [path] => Array ( [0] => paths [1] => /callflow [2] => post [3] => parameters [4] => 0 ) ) ) )