code: def _is_string_constant_node(node):
      return type(node) is ast.Constant and type(node.value) is str
  
file_path: streamlit/lib/streamlit/runtime/scriptrunner/magic.py
imports: import ast
  from typing_extensions import Final
  from streamlit import config
label_desc: Use image node_id 7 for calling a global function with example usage: _is_string_constant_node(node) and returns: unknown