def wrap_filters(filters):
  def combined_filter(x):
    for filt in filters:
      if not filt(x):
        return False
    return True
  return combined_filter
Signs an envelope given appropriate key inputs.
dataset/ETHPy150Open pantsbuild/pants/src/python/pants/util/filtering.py/wrap_filters--crossover with--dataset/ETHPy150Open mimecuvalo/helloworld/packages/magicsig/__init__.py/Envelope._Sign