Derive Macro Index 

#[derive(Index)]
{
    // Attributes available to this derive:
    #[index]
}

Derives the Index trait for a struct where each field is itself an Index.

This macro generates an implementation of composable_indexes::Index for a struct where each field is itself an Index. This allows you to compose multiple indexes together without manually writing the Index trait implementation.

Required Attribute

The #[index(Type)] attribute must be specified to indicate the type being indexed.