code: def placeholders_from_spaces(*args):
      return [placeholder_from_space(space) for space in args]
  
file_path: spinningup/spinup/algos/tf1/vpg/core.py
imports: import numpy
  import tensorflow
  import scipy.signal
  from gym.spaces import Box, Discrete
label_desc: Use image node_id 5 for calling a global function with example usage: placeholders_from_spaces() and returns: unknown