code: def copy(source):
      """Copy a docstring from another source function (if present)."""
  
      def do_copy(target):
          if source.__doc__:
              target.__doc__ = source.__doc__
          return target
  
      return do_copy
  
file_path: catboost/contrib/python/matplotlib/py3/matplotlib/_docstring.py
imports: import inspect
  from .None import _api
label_desc: Use image node_id 1 for calling a global function with example usage: copy(source) and returns: do_copy, target