实验性实验性Adds a callback that will be called when the scripting environment is initialized for a World.
无法在只读模式下调用此函数，详见 WorldBeforeEvents。
This function can be called in early-execution mode.
实验性Removes a callback from being called the scripting environment is initialized for a World.
无法在只读模式下调用此函数，详见 WorldBeforeEvents。
This function can be called in early-execution mode.
Manages callbacks that are run on the first tick of the World. Do note that this event may run multiple times within a session in the case that the /reload command is used.