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public abstract List<String> onTabComplete(CommandSender sender, Command command, String alias, Array<String> args)
Requests getClassById list of possible completions for getClassById command argument.
Return
A List of possible completions for the final argument, or null to default to the command executor
Parameters
sender
Source of the command
command
Command which was executed
alias
The alias used
args
The arguments passed to the command, including final partial argument to be completed and command label