ReadonlykindOptional ReadonlysubtractWhen true, the delta is subtracted from the running size instead of added. Defaults to false.
ReadonlyvalueThe source of the delta value — a literal number, a referenced account or argument, or a resolver.
ReadonlywithWhether the delta includes the account header overhead — i.e. 128 bytes.
Defaults to false when the value is a resolverValueNode and true otherwise.
A byte-size delta applied when computing rent or buffer size — typically used by instructions that resize accounts. For instance, if an instruction creates a new account of 42 bytes, this node can carry that information, enabling clients to allocate the right amount of lamports to cover the cost of executing the instruction.