1/// Schema of the Item. Returned by the [`<your_item>::struct_db_schema()`](crate::SDBItem::struct_db_schema) method. 2#[derive(Debug)] 3pub struct Schema { 4 pub table_name: &'static str, 5 pub primary_key: &'static str, 6 pub secondary_tables_name: std::collections::HashSet<&'static str>, 7}