parameters: (self)
return_statement: return {'DMLC_TRACKER_URI': self.hostIP,
                  'DMLC_TRACKER_PORT': self.port}
docstring: get enviroment variables for slaves
          can be passed in as args or envs
docstring_summary: get enviroment variables for slaves
          can be passed in as args or envs
docstring_tokens: get enviroment variables for slaves can be passed in as args or envs
function: def slave_envs(self):
          """
          get enviroment variables for slaves
          can be passed in as args or envs
          """
          return {'DMLC_TRACKER_URI': self.hostIP,
                  'DMLC_TRACKER_PORT': self.port}
function_tokens: def slave_envs ( self ) : return { 'DMLC_TRACKER_URI' : self . hostIP , 'DMLC_TRACKER_PORT' : self . port }