code: function uint32BEtoNumber(bytes) {
    let n = 0;
    for (let i = 0; i < 3; i++) {
      n |= bytes[i];
      n <<= 8;
    }
    n |= bytes[3];
    return n;
  }
docs: read in uint32BE Bytes return uint32 number
  @param {Buffer} bytes Big-endian byte buffer