Have integers be deserialized as number not bigint

[OlafConijn]

hi, passing bigints to the aws-sdk will result in an error. maybe use numbers instead?

[eduardomourar]

The way I solved this is by converting to number during serialization of a bigint. So you should always pass down the plain object to the AWS SDK by invoking the serialize method.

I wanted to keep a distinction between integer and float numbers, but we can revisit that in case it becomes too complicated or not intuitive.

[eduardomourar]

The reason for creating our own BigInt type is lack of serialization support (more details here)