fn get_feedback(env: soroban_sdk::Env, id: u32) -> FeedbackEntry
fn save_feedback(
env: soroban_sdk::Env,
user: soroban_sdk::Address,
name: soroban_sdk::String,
email: soroban_sdk::String,
designation: soroban_sdk::String,
company: soroban_sdk::String,
thoughts: soroban_sdk::String,
rating: u32,
) -> u32
fn get_feedback_count(env: soroban_sdk::Env) -> u32