src/vs/platform/terminal/common/capabilities/terminalCapabilityStore.ts/TerminalCapabilityStoreMultiplexer/get
class TerminalCapabilityStoreMultiplexer:	get<T extends TerminalCapability>(capability: T): ITerminalCapabilityImplMap[T] | undefined {
		for (const store of this._stores) {
			const c = store.get(capability);
			if (c) {
				return c;
			}
		}
		return undefined;
	}