journallib/dto/subgroup_location_response.rs
use serde::{Deserialize, Serialize};
use uuid::Uuid;
use std::collections::HashMap;
#[derive(Serialize, Deserialize, Debug, Clone)]
#[serde(rename_all = "camelCase")]
pub struct SubgroupLocationResponse {
pub id: Uuid,
pub students : HashMap<Uuid, String>,
pub teacher: Option<Uuid>,
pub location : Option<Uuid>
}