Length checks for alloc::String fields

[pyrox0]

Currently, I'm writing an API library to retrieve data from an external service. I'm looking to encode certain guarantees that are satisfied by the service in my types, specifically the one I'm looking for is min/max length checks for alloc::String types as fields. For instance, a shortened version of a struct I have(extraneous fields removed) looks like this:

pub struct Bid {
    #[facet(default = String::from("bid"))]
    r#type: String,
	// ...
    /// The bid's description. Limited to 1024 characters.
    pub description: String,
    /// A shorter description for tighter spaces. Limited to 256 characters.
    pub shortdescription: String,
	// ...
}

I'd like some way to ensure in code that these types also have their length limits enforced. Is this already possible?

See below for what I've envisioned this to look like:

pub struct Bid {
    #[facet(default = String::from("bid"))]
    r#type: String,
	// ...
    /// The bid's description. Limited to 1024 characters.
    #[facet(max_length = 1024)]
	pub description: String,
    /// A shorter description for tighter spaces. Limited to 256 characters.
    #[facet(max_length = 256)]
	pub shortdescription: String,
	// ...
}

Note for above: While I wouldn't have a use for it, I could imagine this hypothetical API also supporting a min_length parameter as well