src/vs/workbench/services/extensions/common/abstractExtensionService.ts/AbstractExtensionService/_getExtensionHostManager
class AbstractExtensionService:	protected _getExtensionHostManager(kind: ExtensionHostKind): ExtensionHostManager | null {
		for (const extensionHostManager of this._extensionHostManagers) {
			if (extensionHostManager.kind === kind) {
				return extensionHostManager;
			}
		}
		return null;
	}