> ## Documentation Index
> Fetch the complete documentation index at: https://docs.r28.ai/charter/llms.txt
> Use this file to discover all available pages before exploring further.
# Objects
> Every object and enum the Blocks tools accept.
## Model tree
## BlockUpdateBody
The body of an update-block request.
| Field | Type | Description |
| ------------------ | ------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------- |
| `type` | `string` | Which kind of block this is. Returned on a read; on a write Notion infers it from whichever content field is set. |
| `code` | [CodeContent](/charter/charter/packs/notion/pages/objects#codecontent) | A block of code. |
| `equation` | [EquationBlockContent](/charter/charter/packs/notion/pages/objects#equationblockcontent) | A standalone LaTeX equation. |
| `image` | [MediaContent](/charter/charter/packs/notion/pages/objects#mediacontent) | An image. |
| `video` | [MediaContent](/charter/charter/packs/notion/pages/objects#mediacontent) | A video. |
| `audio` | [MediaContent](/charter/charter/packs/notion/pages/objects#mediacontent) | An audio clip. |
| `pdf` | [MediaContent](/charter/charter/packs/notion/pages/objects#mediacontent) | A PDF. |
| `file` | [FileBlockContent](/charter/charter/packs/notion/pages/objects#fileblockcontent) | A file attachment. |
| `embed` | [EmbedContent](/charter/charter/packs/notion/pages/objects#embedcontent) | Third-party content rendered inline. |
| `bookmark` | [BookmarkContent](/charter/charter/packs/notion/pages/objects#bookmarkcontent) | A link rendered as a bookmark card. |
| `divider` | [EmptyContent](/charter/charter/packs/notion/pages/objects#emptycontent) | A horizontal rule. Send an empty object. |
| `breadcrumb` | [EmptyContent](/charter/charter/packs/notion/pages/objects#emptycontent) | The page's ancestry. Send an empty object. |
| `tableOfContents` | [TableOfContentsContent](/charter/charter/packs/notion/pages/objects#tableofcontentscontent) | A table of contents built from the page's headings. |
| `tableRow` | [TableRowContent](/charter/charter/packs/notion/pages/objects#tablerowcontent) | One row of a table. |
| `linkToPage` | [LinkToPageContent](/charter/charter/packs/notion/pages/objects#linktopagecontent) | A link to another page, database or comment. |
| `paragraph` | [BlockParagraphContent](/charter/charter/packs/notion/pages/objects#blockparagraphcontent) | A paragraph of text. |
| `heading1` | [BlockHeadingContent](/charter/charter/packs/notion/pages/objects#blockheadingcontent) | A top-level heading. |
| `heading2` | [BlockHeadingContent](/charter/charter/packs/notion/pages/objects#blockheadingcontent) | A second-level heading. |
| `heading3` | [BlockHeadingContent](/charter/charter/packs/notion/pages/objects#blockheadingcontent) | A third-level heading. |
| `heading4` | [BlockHeadingContent](/charter/charter/packs/notion/pages/objects#blockheadingcontent) | A fourth-level heading. |
| `bulletedListItem` | [BlockTextContent](/charter/charter/packs/notion/pages/objects#blocktextcontent) | A bulleted list item. |
| `numberedListItem` | [BlockNumberedListItemContent](/charter/charter/packs/notion/pages/objects#blocknumberedlistitemcontent) | A numbered list item. |
| `toDo` | [BlockToDoContent](/charter/charter/packs/notion/pages/objects#blocktodocontent) | A checklist item. |
| `toggle` | [BlockTextContent](/charter/charter/packs/notion/pages/objects#blocktextcontent) | A toggle, which collapses the blocks beneath it. |
| `quote` | [BlockTextContent](/charter/charter/packs/notion/pages/objects#blocktextcontent) | A quotation. |
| `callout` | [BlockCalloutContent](/charter/charter/packs/notion/pages/objects#blockcalloutcontent) | A callout — text in a tinted box with an icon. |
| `template` | [BlockTemplateContent](/charter/charter/packs/notion/pages/objects#blocktemplatecontent) | A template button. Deprecated by Notion. |
| `syncedBlock` | [BlockSyncedBlockContent](/charter/charter/packs/notion/pages/objects#blocksyncedblockcontent) | Content mirrored between two places. |
| `tab` | [BlockTabContent](/charter/charter/packs/notion/pages/objects#blocktabcontent) | A set of tabs. |
| `table` | [BlockTableContent](/charter/charter/packs/notion/pages/objects#blocktablecontent) | A table. |
| `column` | [BlockColumnContent](/charter/charter/packs/notion/pages/objects#blockcolumncontent) | One column of a column list. |
| `inTrash` | `boolean` | Whether the block is in the trash. False restores it. |
## BlockChildrenAppendBody
The body of an append-children request.
| Field | Type | Description |
| ---------------------------------------------------------------- | -------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `children` \* | [Block](/charter/charter/packs/notion/pages/objects#block)\[] | The blocks to append. At most 100 per call, nested at most two levels deep — build deeper trees by appending to the blocks that come back. max 100 items |
| `position` | [Position](/charter/charter/packs/notion/pages/objects#position) | Where among the existing children the new blocks land. Appended to the end when absent. |