declare module "command-line-usage" {
  namespace internal {
    export type Sections = Section | Section[];

    export type Section = ContentSection | OptionListSection;

    export type ContentSection = {
      header: string;
      content: string | string[] | Record<string, any>[];
      raw?: boolean;
    };

    export type OptionListSection = {
      header: string;
      optionList: OptionDefinition[];
      group?: string | string[];
      hide?: string | string[];
    };

    export type OptionDefinition = {
      name: string;
      type: (value: any) => any;
      alias?: string;
      multiple?: boolean;
      defaultOption?: boolean;
      defaultValue?: any;
      group?: string | string[];
      description?: string;
      typeLabel?: string;
    };
  }

  function internal(sections: internal.Sections): string;

  export = internal;
}

declare module "command-line-commands" {
  function internal(
    commands: string | null | (string | null)[],
    argv?: string[]
  ): { command: string; argv: string[] };
  export = internal;
}

declare module "command-line-args" {
  namespace internal {
    export type CommandLineArgsOptions = {
      argv?: string[];
      partial?: boolean;
    };

    export type OptionDefinition = {
      name: string;
      type: (value: any) => any;
      alias?: string;
      multiple?: boolean;
      defaultOption?: boolean;
      defaultValue?: any;
      group?: string | string[];
      description?: string;
      typeLabel?: string;
    };
  }

  function internal(
    optionDefinitions: internal.OptionDefinition[],
    options?: internal.CommandLineArgsOptions
  ): Record<string, unknown>;

  export = internal;
}