code: def get_measurements(self, pipeline, object_name, category):
      if category in self.get_categories(pipeline, object_name):
          return [self.output_feature_name.value]
      return []
  
imports: import logging
  import numpy
  from cellprofiler_core.constants.measurement import COLTYPE_FLOAT
  from cellprofiler_core.constants.measurement import IMAGE
  from cellprofiler_core.constants.measurement import R_FIRST_IMAGE_NUMBER
  from cellprofiler_core.constants.measurement import R_FIRST_OBJECT_NUMBER
  from cellprofiler_core.constants.measurement import R_PARENT
  from cellprofiler_core.constants.measurement import R_SECOND_IMAGE_NUMBER
  from cellprofiler_core.constants.measurement import R_SECOND_OBJECT_NUMBER
  from cellprofiler_core.module import Module
  from cellprofiler_core.setting import Binary
  from cellprofiler_core.setting import Divider
  from cellprofiler_core.setting import Measurement
  from cellprofiler_core.setting import ValidationError
  from cellprofiler_core.setting.choice import Choice
  from cellprofiler_core.setting.subscriber import LabelSubscriber
  from cellprofiler_core.setting.text import Alphanumeric
  from cellprofiler_core.setting.text import Float
  from cellprofiler_core.setting.text import Integer
label_desc: Use image node_id 13 for calling the CalculateMath obj's underlying member method code with example usage: obj.get_measurements(pipeline, object_name, category) and returns: list, list