Select an session file, loading it if it exists.
the edit filename to activate
Request that the server change its working directory.
target working directory
Ask cybr to render a file, and return the result. This is an experimental feature available in cybr 0.3.2.
Get semantic version number of the cybr server.
if this is a string, treat it as a semver pattern, and print a warning if the value returned by the server does not satisfy this argument. This can also be a handler function, which accepts an error integer as the first argument and a semver string as the second. If no argument is provided, print a message stating the cybr version.