module HTTParty::ClassMethods

def validate_format 

def validate_format
  if format && parser.respond_to?(:supports_format?) && !parser.supports_format?(format)
    supported_format_names = parser.supported_formats.map(&:to_s).sort.join(', ')
    raise UnsupportedFormat, "'#{format.inspect}' Must be one of: #{supported_format_names}"
  end
end