How to use the apache-arrow.ArrowType.Int function in apache-arrow

export function arrowTableToDataFrame(table: Table): ArrowDataFrame {
  const fields: Field[] = [];

  for (let i = 0; i < table.numCols; i++) {
    const col = table.getColumnAt(i);
    if (col) {
      const schema = table.schema.fields[i];
      let type = FieldType.other;
      const values: Vector = col;
      switch ((schema.typeId as unknown) as ArrowType) {
        case ArrowType.Decimal:
        case ArrowType.Int:
        case ArrowType.FloatingPoint: {
          type = FieldType.number;
          break;
        }
        case ArrowType.Bool: {
          type = FieldType.boolean;
          break;
        }
        case ArrowType.Timestamp: {
          type = FieldType.time;
          break;
        }
        default:
          console.log('UNKNOWN Type:', schema);
      }
      // console.log(' field>', schema.metadata);