code: def Act():
      if config.net_act == "prelu":
          return nn.PReLU()
      else:
          return nn.Activation(config.net_act)
  
imports: import sys
  import os
  import mxnet
  import mxnet.ndarray
  import mxnet.gluon
  import mxnet.gluon.nn
  import mxnet.autograd
  import symbol_utils
  from config import config
label_desc: Use image node_id 1 for calling a global function with example usage: Act() and returns: nn, nn