om = <a href="/home/steven/devel/nostr/apps/erts/doc/erlang.html#type-integer">integer()</a></code></li><li><code>To = <a href="/home/steven/devel/nostr/apps/erts/doc/erlang.html#type-integer">integer()</a></code></li><li><code>Opts = [Option, ...]</code></li><li><code>Option = {padding, <a href="/home/steven/devel/nostr/apps/erts/doc/erlang.html#type-boolean">boolean()</a>}</code></li><li><code>Return = {ok, <a href="/home/steven/devel/nostr/apps/erts/doc/erlang.html#type-list">list()</a>} | {error, Reason