Function encode_constructor_args 

pub fn encode_constructor_args<T>(args: T) -> Bytes
where
    T: SolValue,
    for<'a> <T::SolType as SolType>::Token<'a>: TokenSeq<'a>,

ABI-encode constructor arguments.

Pass a tuple of alloy Solidity values matching the constructor parameter list, e.g. (owner, weth, vault). Single-argument constructors need a trailing comma so the value is still a tuple: (owner,). An empty tuple () encodes to empty bytes, which is correct for argument-less constructors.

The encoding mirrors Solidity constructor parameter encoding (abi.encode(arg0, arg1, ...)): it uses SolValue::abi_encode_params, which lays the arguments out as a flat parameter list. This differs from SolValue::abi_encode, which would wrap a tuple in an extra layer (matching abi.encode((...))) and produce the wrong bytes for a constructor.

The trait bounds spell out “any alloy Solidity value tuple”: T: SolValue means each element implements the alloy Solidity-value trait, and the TokenSeq bound on T::SolType requires the tuple’s token to be a sequence so it can be encoded as a parameter list. In practice you do not construct these bounds yourself — they are satisfied automatically by tuples of alloy primitives such as Address, U256, and String.

let args = evm_fork_cache::deploy::encode_constructor_args((owner, weth, vault));