Derive Macro TypeAssoc 

#[derive(TypeAssoc)]
{
    // Attributes available to this derive:
    #[type_assoc]
}

Implements traits that only have associated types.

Example

#[derive(TypeAssoc)]
#[type_assoc(trait = Foo, Item = Vec<u8>)]
struct MyStruct;

adds

impl Foo for MyStruct {
    type Item = Vec<u8>;
}