class_docstr: Special singleton class used to represent generic DataSets and Columns.
      
class_docstr_tok: ["Special","singleton","class","used","to","represent","generic","DataSets","and","Columns","."]
code: def data_query_cutoff_for_sessions(self, sessions):
      raise NotImplementedError(
          "Can't compute data query cutoff times for generic domain.",
      )
  
imports: import datetime
  from textwrap import dedent
  from interface import default, implements, Interface
  import numpy
  import pandas
  import pytz
  from trading_calendars import get_calendar
  from zipline.country import CountryCode
  from zipline.utils.formatting import bulleted_list
  from zipline.utils.input_validation import expect_types, optional
  from zipline.utils.memoize import lazyval
  from zipline.utils.pandas_utils import days_at_time
label_desc: Use image node_id 3 for calling the GenericDomain obj's underlying member method code with example usage: obj.data_query_cutoff_for_sessions(sessions) without return types