service Msg {
// UpdateParams defines a governance operation for updating the x/callback
// module parameters. The authority is defined in the keeper.
rpc UpdateParams(MsgUpdateParams) returns (MsgUpdateParamsResponse);
// RequestCallback defines a message for registering a callback at a specific height by a given contract
rpc RequestCallback(MsgRequestCallback) returns (MsgRequestCallbackResponse);
// CancelCallback defines a message for cancelling an existing callback
rpc CancelCallback(MsgCancelCallback) returns (MsgCancelCallbackResponse);
}
Implement the msgs from the AIP