code: def to(self, new_units):
      factors = {
          ("hours", "seconds"): 3600,
          ("minutes", "hours"): 1 / 60,
          ("minutes", "seconds"): 60,
          ("feet", "miles"): 1 / 5280.0,
          ("feet", "inches"): 12,
          ("miles", "inches"): 12 * 5280,
      }
      if self.units != new_units:
          mult = factors[self.units, new_units]
          return Quantity(mult * self.magnitude, new_units)
      else:
          return Quantity(self.magnitude, self.units)
  
imports: from datetime import datetime, timezone, timedelta
  import platform
  from unittest.mock import MagicMock
  import matplotlib.pyplot
  from matplotlib.testing.decorators import check_figures_equal, image_comparison
  import matplotlib.units
  from matplotlib.category import UnitData
  import numpy
  import pytest
label_desc: Use image node_id 2 for calling the Quantity obj's underlying member method code with example usage: obj.to(new_units) and returns: Quantity, Quantity