code: def test_minute_index_to_session_labels(self, interval, offset):
      minutes = self.calendar.minutes_for_sessions_in_range(
          pd.Timestamp("2011-01-04", tz="UTC"),
          pd.Timestamp("2011-04-04", tz="UTC"),
      )
      minutes = minutes[range(offset, len(minutes), interval)]
  
      np.testing.assert_array_equal(
          np.array(
              minutes.map(self.calendar.minute_to_session_label),
              dtype="datetime64[ns]",
          ),
          self.calendar.minute_index_to_session_labels(minutes),
      )
  
imports: from datetime import time
  from os.path import abspath, dirname, join
  from unittest import TestCase
  import numpy
  import pandas
  from nose_parameterized import parameterized
  from pandas import read_csv
  from pandas.tslib import Timedelta
  from pandas.util.testing import assert_index_equal
  from pytz import timezone
  from toolz import concat
  from catalyst.errors import CalendarNameCollision, InvalidCalendarName
  from catalyst.testing.predicates import assert_equal
  from catalyst.utils.calendars import deregister_calendar, get_calendar, register_calendar
  from catalyst.utils.calendars.calendar_utils import _default_calendar_aliases, _default_calendar_factories, register_calendar_type
  from catalyst.utils.calendars.trading_calendar import days_at_time, TradingCalendar
label_desc: Use image node_id 10 for calling the ExchangeCalendarTestBase obj's underlying member method code with example usage: obj.test_minute_index_to_session_labels(interval, offset) without return types