Passing any overrides to builduseroperation, returns the fields as Bignumber and not Hex.

[HatimPatwa]

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[REQUIRED] Environment

• Browser version: Node 20
• AA SDK version: 4.3.1
• Package: npm

[REQUIRED] Describe the problem

when we pass any field for overrride lets say, preVerificationGas override in buildUserOperation, that specific field response type changes from hex to bignumber

How to reproduce:

Pass key "preVerificationGas" in the overrides object of buildUserOperation. and compare the before and after the same field will have different response type.

Relevant code or sample repro:

code snippet :

uoEstimate = await smartAccountClient.buildUserOperation({
      //@ts-ignore
      uo: uoData,
      overrides: { //todo set multipliers fetched from db
        // paymasterAndData: "0x"
        maxFeePerGas: {
          multiplier: maxFeePerGasMultiplier,
        },
        maxPriorityFeePerGas: {
          multiplier: maxPriorityFeePerGasMultiplier,
        },
        // preVerificationGas: {
        //   multiplier: GAS_MULTIPLIER.Economy //for now set to economy
        // }
      }
      //@ts-ignore
    }, "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789");

Before preVerificationGas override

After preVerificationGas override

[moldy530]

Hey! this is expected behaviour as the type buildUserOperation returns is UserOperationStruct which has BigNumberish for those fields. If you then want all fields to be Hex for sending over the wire, you can call deepHexlify which is exported from @aa-sdk/core