pub fn ibc_channel_open(
_deps: DepsMut<'_>,
_env: Env,
msg: IbcChannelOpenMsg,
) -> StdResult<Option<Ibc3ChannelOpenResponse>>pub fn ibc_channel_open(
_deps: DepsMut<'_>,
_env: Env,
msg: IbcChannelOpenMsg,
) -> StdResult<Option<Ibc3ChannelOpenResponse>>