code: def IsRPC(item):
      
      if not isinstance(item, WSDLTools.OperationBinding):
          raise TypeError, 'IsRPC takes 1 argument of type WSDLTools.OperationBinding'
      soapbinding = item.getBinding().findBinding(WSDLTools.SoapBinding)
      sob = item.findBinding(WSDLTools.SoapOperationBinding)
      style = soapbinding.style
      if sob is not None:
          style = sob.style or soapbinding.style
      return style == 'rpc'
docs: item -- OperationBinding instance.