server.Server.find_window

This is separate from Server::choose because it needs something to search for, where the other choosers list what already exists. Like them it opens in a pane rather than on a client, so it needs no client and leaves the pane in tree-mode on a server nothing is attached to.

Errors

Returns Error::ServerMismatch when the client belongs to another server, or an error when tmux refuses the command. A missing client is not one: this does not need one.