function isBigIntObject
#isBigIntObject(object: unknown): object is BigIntReturns true if the value is a BigInt object, e.g. created
by Object(BigInt(123)).
util.types.isBigIntObject(Object(BigInt(123)));   // Returns true
util.types.isBigIntObject(BigInt(123));   // Returns false
util.types.isBigIntObject(123);  // Returns false
Parameters #
#object: unknown Return Type #
object is BigInt