fn delete_record(env: soroban_sdk::Env, patient_record_id: u64) -> soroban_sdk::String
fn revoke_record(env: soroban_sdk::Env, patient_record_id: u64) -> soroban_sdk::String
fn get_all_records(env: soroban_sdk::Env) -> soroban_sdk::Vec
fn get_record_by_id(
env: soroban_sdk::Env,
patient_record_id: u64,
) -> Option
fn submit_screening(
env: soroban_sdk::Env,
patient_hash: soroban_sdk::BytesN<32>,
result_hash: soroban_sdk::BytesN<32>,
biomarker_summary: soroban_sdk::String,
screening_notes: soroban_sdk::String,
) -> soroban_sdk::String
fn get_active_records(env: soroban_sdk::Env) -> soroban_sdk::Vec
fn get_high_risk_records(env: soroban_sdk::Env) -> soroban_sdk::Vec