code: def test_remove_file(self):
      self.hffs.rm_file(self.hf_path + "/data/text_data.txt")
      self.assertEqual(
          self.hffs.glob(self.hf_path + "/data/*"),
          [self.hf_path + "/data/binary_data.bin"],
      )
      self.hffs.rm_file(
          self.hf_path + "@refs/pr/1" + "/data/binary_data_for_pr.bin"
      )
      self.assertEqual(
          self.hffs.glob(self.hf_path + "@refs/pr/1" + "/data/*"), []
      )
  
imports: import datetime
  import unittest
  from typing import Optional
  from unittest.mock import patch
  import fsspec
  import pytest
  from huggingface_hub.hf_file_system import HfFileSystem
  from huggingface_hub.utils import RepositoryNotFoundError, RevisionNotFoundError
  from .testing_constants import ENDPOINT_STAGING, TOKEN
  from .testing_utils import repo_name
label_desc: Use image node_id 7 for calling the HfFileSystemTests obj's underlying member method code with example usage: obj.test_remove_file() without return types