code: def makefile(self, *args, **kwargs):
      return BytesIO(b"")
  
file_path: pelican/pelican/tests/test_server.py
imports: import os
  from io import BytesIO
  from shutil import rmtree
  from tempfile import mkdtemp
  from pelican.server import ComplexHTTPRequestHandler
  from pelican.tests.support import unittest
label_desc: Use image node_id 1 for calling the MockRequest obj's underlying member method code with example usage: obj.makefile() and returns: BytesIO