def signed_url
      [
        parsed_url.scheme,
        '://',
        parsed_url.host,
        parsed_url.path,
        '?',
        query_params_as_string_with_signature
      ].join.html_safe
    end
def signed_url
      [
        parsed_url.scheme,
        '://',
        parsed_url.host,
        parsed_url.path,
        '?',
        query_params_as_string_with_signature
      ].join.html_safe
    end
Public: Calculates the signature and returns a signed version of the URL