def to_fileset_with_spec(self, engine, scheduler, relpath):
    filespecs = self.legacy_globs_class.to_filespec(self.patterns)
    pathglobs = PathGlobs.create_from_specs(FSFiles, relpath, filespecs.get('globs', []))
    lfc = LazyFilesContent(engine, scheduler, pathglobs)
    return wrapped_globs.FilesetWithSpec('',
                                         filespecs,
                                         files_calculator=lfc.files,
                                         file_content_calculator=lfc.file_content)
PayPal IPN endpoint (notify_url).
dataset/ETHPy150Open pantsbuild/pants/src/python/pants/engine/exp/legacy/globs.py/BaseGlobs.to_fileset_with_spec--crossover with--dataset/ETHPy150Open spookylukey/django-paypal/paypal/standard/ipn/views.py/ipn