Function packGasFees

packGasFees(maxPriorityFeePerGas: bigint, maxFeePerGas: bigint): `0x${string}`
Pack max priority fee and max fee per gas into bytes32
Parameters
- maxPriorityFeePerGas: bigint
  The max priority fee per gas (tip)
- maxFeePerGas: bigint
  The max fee per gas
Returns `0x${string}`
Packed bytes32 with gas fees
- Defined in mechanisms/evm/src/erc4337/constants.ts:234