eg: `#[cfg_attr(docsrs, doc(cfg(feature = "io-std")))]` We might not even need to use the `docsrs` part, since i don't think it hurts to have the doc attribute on at all times.
eg:
#[cfg_attr(docsrs, doc(cfg(feature = "io-std")))]We might not even need to use the
docsrspart, since i don't think it hurts to have the doc attribute on at all times.