/proc/load_resource(File)
Usage:
load_resource(File)
load_resource(File, KeepTime)
File: A resource: a sound or image.
KeepTime: How long, in seconds, this should be loaded for.
load_resource(File1, File2, ..., KeepTime1, File3, File4, ..., KeepTime2)
KeepTime1: Only applies to the previous files specified.
KeepTime2: Only applies to the files specified between this argument and KeepTime1
Unimplemented 🏗️
In the OpenDream implementation of DreamMaker, this proc is marked as unimplemented.

Combined with the << output operator, this informs the client to load the specified resource. If no KeepTime is specified, it is kept for the default duration. If -1 is specified, it will attempt to be loaded indefinitely.

/client/New()
    src << load_resource('ambient.ogg', -1, 'login_music', 120)
    // keep the ambient music forever, the login music for the next 120 seconds