The type specifiers allow you to format the UUID in different ways,
e.g. `{uuid:x}` will give you a with a hexadecimal UUID.
The supported type specifiers are:
`s`
:   String representation of a UUID including dashes.
`i`
:   Integer representation of a UUID. Like to `UUID.int`.
`x`
:   Hexadecimal (Base16) representation of a UUID. Like to
    `UUID.hex`.
`X`
:   Upper case hexadecimal representation of a UUID. Like to
    `UUID.hex`.
`base32`
:   Base32 representation of a UUID without padding.
`base64`
:   Base64 representation of a UUID without padding.
    :::: warning
    ::: title
    Warning
    :::
    Not all file systems support Base64 file names.
    ::::
All type specifiers also support precisions to cut the string, e.g.
`{{uuid:.2base32}}` would only return the first 2 characters of a
Base32 encoded UUID.