code: def snake_to_camel(snake):
      return "".join([x.title() for x in snake.split("_")])
  
imports: from nnabla.utils import nnabla_pb2
  from six.moves import filter
  import copy
  import nnabla
  import nnabla.ext_utils
  import nnabla.functions
  import nnabla.utils.converter
  import nnabla.dtypes
  from nnabla.testing import assert_allclose
  import numpy
  import numpy
  import platform
label_desc: Use image node_id 2 for calling a global function with example usage: snake_to_camel(snake) and returns: str