code: def fetch_value(attr_name):
      """Given name of ParamAttr, fetch numpy value of the parameter in global_scope
  
      Args:
          attr_name: ParamAttr name of parameter
  
      Returns:
          numpy.ndarray
      """
      return _fetch_var(attr_name, return_numpy=True)
  
imports: import paddle.fluid
  from paddle.fluid.executor import _fetch_var
  from parl.utils import machine_info
label_desc: Use image node_id 2 for calling a global function with example usage: fetch_value(attr_name) and returns: _fetch_var