SimulationFlag from the SimulateTxn method is also used for the EstimateFee

[thiagodeev]

THe SimulationFlag flags from EstimateFee is different than the ones from the SimulateTxn. For EstimateFee, only SKIP_VALIDATE is valid, but for SimulateTxn, there's also the SKIP_FEE_CHARGE. We should create a specific type for the EstimateFee flag

[bimakw]

Hey, I can take this one.

Looking at the spec, starknet_estimateFee only allows SKIP_VALIDATE while starknet_simulateTransactions allows both SKIP_VALIDATE and SKIP_FEE_CHARGE.

Planning to create a separate EstimateFeeFlag type with only SKIP_VALIDATE, then update the EstimateFee method signature to use it instead of SimulationFlag.

Will send a PR soon.