code: def first_non_none(*args):
      return next(a for a in args if a is not None)
  
file_path: sonnet/sonnet/src/functional/utils.py
imports: import functools
  from sonnet.src import utils
  import tensorflow
  import tree
label_desc: Use image node_id 4 for calling a global function with example usage: first_non_none() and returns: next