code: def internal_define(self):
      annstr = [str(a) for a in self.annotations]
      annstr = " ".join(annstr)
      astr = """\
  NPY_NO_EXPORT %s %s %s \\\n       (%s);""" % (
          annstr,
          self.return_type,
          self.name,
          self._argtypes_string(),
      )
      return astr
  
imports: import hashlib
  import io
  import os
  import re
  import sys
  import importlib.util
  import textwrap
  from os.path import join
label_desc: Use image node_id 5 for calling the FunctionApi obj's underlying member method code with example usage: obj.internal_define() and returns: astr