code: def testGetLastMonday(self):
      self.assertEquals(
          dt.get_last_monday(2010), datetime.date(2010, 12, 27)
      )
      self.assertEquals(
          dt.get_last_monday(2011), datetime.date(2011, 12, 26)
      )
  
imports: import datetime
  from six.moves import xrange
  from .None import common
  from pyalgotrade import utils
  from pyalgotrade.utils import collections
  from pyalgotrade.utils import dt
label_desc: Use image node_id 4 for calling the DateTimeTestCase obj's underlying member method code with example usage: obj.testGetLastMonday() without return types