> For the complete documentation index, see [llms.txt](https://docs.dedot.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dedot.dev/known-types-and-codecs.md).

# Known types & codecs

`TODO`

### AccountId32

Codec: `$AccountId32`

TypeIn: `AccountId32Like`

TypeOut: `AccountId32` 

### AccountId20

Codec: `$AccountId20`

TypeIn: `AccountId20Like`

TypeOut: `AccountId20`

### Metadata

Codec: `$Metadata`

Type In/Out: `Metadata`

### Extrinsic

Codec: `$Entrisic`

Type In/Out: `Extrinsic`

### Header

Codec: `$Header`

Type In/Out: `Header`

### Block

Codec: `$Block`

Type In/Out: `Block`