[HELP] Using STEAM ID or License Identifier to commands

Hello, I am having trouble trying to find the correct way of using STEAM ID or the license identifier.
I wanted to only players with the STEAM ID on a config = {} could use the command.

Ex:

admins = {
    "license:#################"
}

I have tried using the FiveM documentation but no success
I tried using

admins = {
"license:mylicenseid"
}

RegisterCommand("thecommand"), function()
          if GetPlayerIdentifiers(_source) = admins then
          ToggleTheCommand()
          else return;
end,

The rest of the resource works I am only having trouble with this

I would appreciate it if someone helped with using STEAM ID too.

Thx

Learn simple Lua syntax before trying to script, this is just poor effort.