code: def create_criteria(cls, query):
          
          criteria = []
          for name, value in query.items():
              if isinstance(value, list):
                  for inner_value in value:
                      criteria += cls.create_criteria({name: inner_value})
              else:
                  criteria.append({
                      'criteria': {
                          'field': name,
                          'value': value,
                      },
                  })
          return criteria or None
docs: Return a criteria from a dictionary containing a query.
  
          Query should be a dictionary, keyed by field name. If the value is
          a list, it will be divided into multiple criteria as required.