Isn't uuid::Uuid supported by default?

[chenghang6]

use uuid::Uuid;

pub struct MockValue {
    pub uuid: Uuid,
}

#[flutter_rust_bridge::frb]
pub fn get_value() -> MockValue {
    MockValue {
        uuid: Uuid::new_v4(),
    }
}

The above code fails to compile with error:
SEVERE: error[E0599]: no method named into_into_dartfound for structuuid::Uuid in the current scope

I thought uuid::Uuid is supported by default.

[chenghang6]

Working after enabling uuid feature.