Trait HasColumns 

pub trait HasColumns {
    type Columns;

    // Required method
    fn columns_proxy() -> Self::Columns;
}

Трейт, который генерирует макрос: возвращает proxy-структуру колонок.

Required Associated Types

type Columns

Required Methods

fn columns_proxy() -> Self::Columns

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors