def Process(self, start_token):

    if start_token is None:
      return

    # TODO(nnaze): Add more goog.scope usage checks.
    self._CheckGoogScopeCalls(start_token)

    # If we have closurized namespaces, identify aliased identifiers.
    if self._closurized_namespaces:
      context = start_token.metadata.context
      root_context = context.GetRoot()
      self._ProcessRootContext(root_context)
Runs the pass on a token stream.
dataset/ETHPy150Open google/closure-linter/closure_linter/aliaspass.py/AliasPass.Process