func (rb *RequestBody) String() (string, error) {
	data, err := rb.Bytes()
	return string(data), err
}
func (rb *RequestBody) String() (string, error) {
	data, err := rb.Bytes()
	return string(data), err
}
func ( rb * RequestBody ) String ( ) ( string , error ) { data , err := rb . Bytes ( ) return string ( data ) , err }
// String reads and returns content of request body in string.
String reads and returns content of request body in string .