src/vs/workbench/common/editor.ts/EditorInputFactoryRegistry/getEditorInputSerializer
class EditorInputFactoryRegistry:	getEditorInputSerializer(arg1: string | IEditorInput): IEditorInputSerializer | undefined {
		return this.editorInputSerializerInstances.get(typeof arg1 === 'string' ? arg1 : arg1.typeId);
	}