docstr: Set the `can_run` attribute to the decorated function.
docstr_tok: ["Set","the","`","can_run","`","attribute","to","the","decorated","function","."]
code: def _can_run(self, func):
      """Set the `can_run` attribute to the decorated function."""
      if not func.__name__.startswith("_"):
          raise ValueError(
              "The name of the function used by `_can_run` must begin with '_'; "
              f"got: {func.__name__!r}"
          )
      self.can_run = func
  
file_path: cugraph/python/nx-cugraph/nx_cugraph/utils/decorators.py
imports: from __future__ import annotations
  from functools import partial, update_wrapper
  from textwrap import dedent
  import networkx
  from networkx.utils.decorators import nodes_or_number, not_implemented_for
  from nx_cugraph.interface import BackendInterface
label_desc: Use image node_id 2 for calling the networkx_algorithm obj's underlying member method code with example usage: obj._can_run(func) without return types