method Buffer.readBigInt64LEBuffer.readBigInt64LE(offset?: number): bigintDeprecatedReads a signed, little-endian 64-bit integer from buf at the specifiedoffset. Integers read from a Buffer are interpreted as two's complement signed values. Parametersoptionaloffset: number = 0Number of bytes to skip before starting to read. Must satisfy: 0 <= offset <= buf.length - 8. Return Typebigint