code: def unary_tuple(x, depth):
      assert depth > 0
      for _ in range(depth):
          x = (x,)
      return x
  
imports: from datetime import datetime
  import importlib
  import logging
  import numpy
  import tensorflow
  from tensorforce import TensorforceError
label_desc: Use image node_id 6 for calling a global function with example usage: unary_tuple(x, depth) and returns: x