class_docstr: Parser for Python source files that extracts TF API exports.
docstr: Process top-level expression for potential symbol export.
docstr_tok: ["Process","top-level","expression","for","potential","symbol","export","."]
code: def _process_expr(self, node: ast.Expr) -> None:
      """Process top-level expression for potential symbol export."""
      if isinstance(node.value, ast.Call):
          self._process_call(node.value)
      elif isinstance(node.value, ast.Constant):
          self._process_constant(node.value)
      else:
          self.visit(node)
  
imports: import ast
  from collections.abc import Sequence
  import re
  from typing import Any, Optional, Union, cast
  from absl import flags
  from absl import logging
  from tensorflow.python.tools.api.generator2.shared import exported_api
label_desc: Use image node_id 10 for calling the Parser obj's underlying member method code with example usage: obj._process_expr(node) without return types