# File lib/soap/rpc/proxy.rb, line 90
  def add_document_operation(soapaction, name, param_def, opt = {})
    opt[:request_style] ||= :document
    opt[:response_style] ||= :document
    opt[:request_use] ||= :literal
    opt[:response_use] ||= :literal
    # default values of these values are unqualified in XML Schema.
    # set true for backward compatibility.
    unless opt.key?(:elementformdefault)
      opt[:elementformdefault] = true
    end
    unless opt.key?(:attributeformdefault)
      opt[:attributeformdefault] = true
    end
    @operation[name] = Operation.new(soapaction, param_def, opt)
  end