How to use the @webassemblyjs/wast-parser.isNanLiteral function in @webassemblyjs/wast-parser

return numberLiteral(rawValue, String(original));
  } else {
    switch (instructionType) {
      case "i32": {
        return numberLiteral(parse32I(rawValue), String(original));
      }
      case "u32": {
        return numberLiteral(parseU32(rawValue), String(original));
      }
      case "i64": {
        return longNumberLiteral(parse64I(rawValue), String(original));
      }
      case "f32": {
        return floatLiteral(
          parse32F(rawValue),
          isNanLiteral(rawValue),
          isInfLiteral(rawValue),
          String(original)
        );
      }
      // f64
      default: {
        return floatLiteral(
          parse64F(rawValue),
          isNanLiteral(rawValue),
          isInfLiteral(rawValue),
          String(original)
        );
      }
    }
  }
}

case "i64": {
        return longNumberLiteral(parse64I(rawValue), String(original));
      }
      case "f32": {
        return floatLiteral(
          parse32F(rawValue),
          isNanLiteral(rawValue),
          isInfLiteral(rawValue),
          String(original)
        );
      }
      // f64
      default: {
        return floatLiteral(
          parse64F(rawValue),
          isNanLiteral(rawValue),
          isInfLiteral(rawValue),
          String(original)
        );
      }
    }
  }
}