code: def _add_ignoring_nones(*args):
      return _reduce_ignoring_nones(lambda a, b: a + b, args)
  
file_path: probability/tensorflow_probability/python/optimizer/proximal_hessian_sparse.py
imports: import numpy
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import dtype_util
  from tensorflow_probability.python.internal import prefer_static
  from tensorflow_probability.python.math.generic import soft_threshold
  from tensorflow_probability.python.math.linalg import sparse_or_dense_matvecmul
label_desc: Use image node_id 3 for calling a global function with example usage: _add_ignoring_nones() and returns: _reduce_ignoring_nones