mysql_common_derive/from_value/enums/attrs/variant.rs
use darling::FromAttributes;
#[derive(Debug, Default, FromAttributes)]
#[darling(attributes(mysql))]
pub struct Mysql {
#[darling(default)]
pub rename: Option<String>,
#[darling(default)]
pub explicit_invalid: bool,
#[darling(default)]
pub allow_invalid_discriminants: bool,
}