code: def last_modified_time(path):
      """
      Get the last modified time of path as a Timestamp.
      """
      return pd.Timestamp(os.path.getmtime(path), unit="s", tz="UTC")
  
imports: import os
  from collections import OrderedDict
  import logbook
  import pandas
  import pytz
  from pandas_datareader.data import DataReader
  from six import iteritems
  from six.moves.urllib_error import HTTPError
  from catalyst.constants import LOG_LEVEL
  from catalyst.utils.calendars import get_calendar
  from .None import treasuries, treasuries_can
  from .benchmarks import get_benchmark_returns
  from ..utils.deprecate import deprecated
  from ..utils.paths import cache_root, data_root
label_desc: Use image node_id 1 for calling a global function with example usage: last_modified_time(path) and returns: pd