Collector interface

std::string function_wrapper::group_list(std::vector<std::string> args)

Description:

URL : /group_list

Arguments : none

XML :

     <method>
      /group_list
     <\method>
     <groups>
      <group>
       group1
      <\group>
     <group>
       group2
     <\group>
    <\groups>