Add a Pylint disable

src/darker/tests/helpers.py

@@ -89,6 +89,7 @@ def flynt_present(present: bool) -> Generator[None, None, None]:
     with _package_present("flynt", present) as fake_flynt_module:
         if present:
             # dummy module and function required by `fstring`:
+            # pylint: disable=no-member
             fake_flynt_module.process = ModuleType("process")  # type: ignore
             fake_flynt_module.process.fstringify_code_by_line = None  # type: ignore
         yield