parameters: (self, type, handler)
docstring: Add a new service to search for.
          NOTE: Services must be added before thread starts.
docstring_summary: Add a new service to search for.
          NOTE: Services must be added before thread starts.
docstring_tokens: Add a new service to search for . NOTE : Services must be added before thread starts .
function: def add_service(self, type, handler):
          """
          Add a new service to search for.
          NOTE: Services must be added before thread starts.
          """
          self._services.append( [ type, handler ] )
function_tokens: def add_service ( self , type , handler ) : self . _services . append ( [ type , handler ] )