new_contents: import django_filters
  
  from .models import (
      CommunityHealthUnit,
      CommunityHealthWorker,
      CommunityHealthWorkerContact
  )
  
  from common.filters.filter_shared import CommonFieldsFilterset
  
  
  class CommunityHealthUnit(CommonFieldsFilterset):
      name = django_filters.CharFieldFilter(look_type='icontains')
      facility = django_filters.AllValuesFilter(look_type='icontains')
  
      class Meta:
          model = CommunityHealthUnit
  
  
  
  class CommunityHealthWorkerFilter(CommonFieldsFilterset):
      first_name = django_filters.CharFieldFilter(look_type='icontains')
      last_name = django_filters.CharFieldFilter(look_type='icontains')
      username = django_filters.CharFieldFilter(look_type='icontains')
  
      class Meta:
          model = CommunityHealthWorker
  
  
  class CommunityHealthWorkerContact(CommonFieldsFilterset):
      health_worker = django_filters.AllValuesFilter(lookup_type='icontains')
      contact = django_filters.AllValuesFilter(lookup_type='icontains')
  
      class Meta:
          model = CommunityHealthWorkerContact
  
  
subject: Add filters.