How to use the vega-lite/build/src/scale.ScaleType.BIN_ORDINAL function in vega-lite

return scalePow<output>();
    case ScaleType.SQRT:
      return scaleSqrt<output>();
    case ScaleType.SYMLOG:
      return undefined;
    case ScaleType.TIME:
      return scaleTime<output>();
    case ScaleType.UTC:
      return scaleUtc<output>();
    case ScaleType.QUANTILE:
      return scaleQuantile<output>();
    case ScaleType.QUANTIZE:
      return scaleQuantize<output>();
    case ScaleType.THRESHOLD:
      return scaleThreshold();
    case ScaleType.BIN_ORDINAL:
      return scaleOrdinal&lt;{ toString(): string }, Output&gt;();
    case ScaleType.ORDINAL:
      return scaleOrdinal&lt;{ toString(): string }, Output&gt;();
    case ScaleType.POINT:
      return scalePoint&lt;{ toString(): string }&gt;();
    case ScaleType.BAND:
      return scaleBand&lt;{ toString(): string }&gt;();
    default:
      return undefined;
  }
}
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return ScaleType.POINT;
      case 'Color':
      case 'Category':
        return ScaleType.ORDINAL;
      default:
    }
  } else if (dataType === 'quantitative') {
    switch (channelType) {
      case 'XBand':
      case 'YBand':
      case 'X':
      case 'Y':
      case 'Numeric':
        return ScaleType.LINEAR;
      case 'Color':
        return isBinned ? ScaleType.LINEAR : ScaleType.BIN_ORDINAL;
      default:
    }
  } else if (dataType === 'temporal') {
    switch (channelType) {
      case 'XBand':
      case 'YBand':
      case 'X':
      case 'Y':
      case 'Numeric':
        return ScaleType.TIME;
      case 'Color':
        return ScaleType.LINEAR;
      default:
    }
  }