code: def GetAll(root_group_id,alias=None,session=None):
  		
  		if not alias:  alias = clc.v2.Account.GetAlias(session=session)
  
  		groups = []
  		for r in clc.v2.API.Call('GET','groups/%s/%s' % (alias,root_group_id),{}, session=session)['groups']:
  			groups.append(Group(id=r['id'],alias=alias,group_obj=r,session=session))
  
  		return(groups)
docs: Gets a list of groups within a given account.
  
  		>>> clc.v2.Group.GetAll("wa1-4416")
  		[<clc.APIv2.group.Group object at 0x1065b0190>, <clc.APIv2.group.Group object at 0x1065b0dd0>]