An option type for List operation

Constructs options for list operation

Converts options into query parameters

The next page token.

This token is required in fetching the next result offset by pageSize in list operation. The internal implementation is intetentionally encapsulated in order not to make invalid one by hand. It can be obtained only from Documents record.

Sets the page token obtained the previous List operation, if any.

Sets the maximum number of documents to return

OrderBy direction and column

Sets order to sort results by