src/vs/platform/keybinding/common/baseResolvedKeybinding.ts/BaseResolvedKeybinding/getElectronAccelerator
class BaseResolvedKeybinding:	public getElectronAccelerator(): string | null {
		if (this._parts.length > 1) {
			// [Electron Accelerators] Electron cannot handle chords
			return null;
		}
		if (this._parts[0].isDuplicateModifierCase()) {
			// [Electron Accelerators] Electron cannot handle modifier only keybindings
			// e.g. "shift shift"
			return null;
		}
		return ElectronAcceleratorLabelProvider.toLabel(this._os, this._parts, (keybinding) => this._getElectronAccelerator(keybinding));
	}