def load(self, filename):
"""Retrieves serialized pd data from Google Cloud Storage."""
global profiler
file_path = self.name() + '/' + filename
profiler.add_event(" Loading file...")
gcs_file = CsvFile(file_path)
profiler.add_event(" Loaded. Reading...")
self._cache = gcs_file.read()
profiler.add_event(" load() done")
