proposalId(string) The ID of the proposal to vote on. This is an auto-incrementing integer in the Governor Alpha contract.
support(boolean) A boolean of true for 'yes' or false for 'no' on the proposal vote.
signature(object) An object that contains the v, r, and, s values of an EIP-712 signature.
[options](CallOptions) Options to set for a transaction and Ethers.js method overrides.
RETURN(object) Returns an Ethers.js transaction object of the vote transaction.