storybook/addons/docs/src/blocks/shared.ts

import { PropsTableProps } from '@storybook/components';

export const CURRENT_SELECTION = '.';

export type Component = any;

export interface StoryData {
  id?: string;
  kind?: string;
  name?: string;
  parameters?: any;
}

export type DocsStoryProps = StoryData & {
  expanded?: boolean;
  withToolbar?: boolean;
};

export interface SlotContext {
  id?: string;
  selectedKind?: string;
  selectedStory?: string;
  parameters?: any;
  storyStore?: any;
}

export type StringSlot = (context: SlotContext) => string;
export type DescriptionSlot = (description: string, context: SlotContext) => string;
export type PropsSlot = (context: SlotContext, component: Component) => PropsTableProps;
export type StorySlot = (stories: StoryData[], context: SlotContext) => DocsStoryProps;

export type StoriesSlot = (stories: StoryData[], context: SlotContext) => DocsStoryProps[];

export interface DocsPageProps {
  titleSlot?: StringSlot;
  subtitleSlot?: StringSlot;
  descriptionSlot?: DescriptionSlot;
  primarySlot?: StorySlot;
  propsSlot?: PropsSlot;
  storiesSlot?: StoriesSlot;
}