Trait Key 

pub trait Key<M>:
    Eq
    + Hash
    + Deref<Target = str> {
    // Required method
    fn metadata(&self) -> &M;
}

JSON object key.

Required Methods

fn metadata(&self) -> &M

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Key<()> for String

fn metadata(&self) -> &()

Implementors