code: def __init__(self, quantiles: List[str]) -> None:
      self.quantiles = quantiles
  
imports: import logging
  from functools import singledispatch
  from typing import Callable, Iterator, List, Optional
  import numpy
  from gluonts.core.component import validated
  from gluonts.dataset.common import DataEntry
  from gluonts.dataset.field_names import FieldName
  from gluonts.itertools import select
  from gluonts.dataset.loader import DataLoader
  from gluonts.model.forecast import Forecast, QuantileForecast, SampleForecast
label_desc: Use image node_id 1 to create a new QuantileForecastGenerator object from inherited base classes: ForecastGenerator with example: obj = QuantileForecastGenerator(quantiles)