NewApprove returns a `approve` action that lives on the `eosio.msig` contract.

NewCancel returns a `cancel` action that lives on the `eosio.msig` contract.

NewExec returns a `exec` action that lives on the `eosio.msig` contract.

NewPropose returns a `propose` action that lives on the `eosio.msig` contract.

NewUnapprove returns a `unapprove` action that lives on the `eosio.msig` contract.