code: def _test_contiguous_minutes_individual(
      self,
      field,
      asset,
      minutes,
      aggregator,
  ):
      # First test each minute in order.
      method_name = field + "s"
      results = []
      repeat_results = []
  
      for minute in minutes:
          value = getattr(aggregator, method_name)([asset], minute)[0]
          # Prevent regression on building an array when scalar is intended.
          self.assertIsInstance(value, Real)
          results.append(value)
  
          # Call a second time with the same dt, to prevent regression
          # against case where crossed start and end dts caused a crash
          # instead of the last value.
          value = getattr(aggregator, method_name)([asset], minute)[0]
          # Prevent regression on building an array when scalar is intended.
          self.assertIsInstance(value, Real)
          repeat_results.append(value)
  
      assert_almost_equal(
          results,
          EXPECTED_AGGREGATION[asset][field],
          err_msg="sid={0} field={1}".format(asset, field),
      )
      assert_almost_equal(
          repeat_results,
          EXPECTED_AGGREGATION[asset][field],
          err_msg="sid={0} field={1}".format(asset, field),
      )
  
imports: from collections import OrderedDict
  from numbers import Real
  from nose_parameterized import parameterized
  from numpy.testing import assert_almost_equal
  from numpy import nan, array, full, isnan
  import pandas
  from pandas import DataFrame
  from six import iteritems
  from zipline.data.resample import minute_frame_to_session_frame, DailyHistoryAggregator, MinuteResampleSessionBarReader, ReindexMinuteBarReader, ReindexSessionBarReader
  from zipline.testing import parameter_space
  from zipline.testing.fixtures import WithEquityMinuteBarData, WithBcolzEquityMinuteBarReader, WithBcolzEquityDailyBarReader, WithBcolzFutureMinuteBarReader, ZiplineTestCase
label_desc: Use image node_id 8 for calling the MinuteToDailyAggregationTestCase obj's underlying member method code with example usage: obj._test_contiguous_minutes_individual(field, asset, minutes, aggregator) without return types