# CreateGuidelineDocumentLibraryInput > Input in domain **Guidelines** - HTML: [CreateGuidelineDocumentLibraryInput.html](CreateGuidelineDocumentLibraryInput.html) - Raw SDL: [CreateGuidelineDocumentLibraryInput.sdl](CreateGuidelineDocumentLibraryInput.sdl) - Covered by: [llms.txt](../llms.txt) Input for creating a guideline document library. ## Input fields - `parentId`: `ID!` _(beta)_ — The ID of the entity to create the document library in (Guideline or Document Group). - `title`: `String!` _(beta)_ — The title of the document library. - `libraryId`: `ID!` _(beta)_ — The library ID - `heading`: `String` = `null` _(beta)_ — The heading of the document library. - `subheading`: `String` = `null` _(beta)_ — The subheading of the document library.