function isBigInt64ArrayisBigInt64Array(value: unknown): value is BigInt64ArrayDeprecatedReturns true if the value is a BigInt64Array instance. util.types.isBigInt64Array(new BigInt64Array()); // Returns true util.types.isBigInt64Array(new BigUint64Array()); // Returns false Parametersvalue: unknownReturn Typevalue is BigInt64Array