code: def adjust_field(self, field, value):
      setattr(self, field, value)
  
imports: from __future__ import division
  import logbook
  import numpy
  from collections import namedtuple
  from catalyst.assets import Future
  from six import itervalues, iteritems
  import catalyst.protocol
  from catalyst.constants import LOG_LEVEL
label_desc: Use image node_id 13 for calling the PerformancePeriod obj's underlying member method code with example usage: obj.adjust_field(field, value) without return types