Function mdbx_env_get_hsr 

pub unsafe extern "C" fn mdbx_env_get_hsr(
    env: *const MDBX_env,
) -> Option<unsafe extern "C" fn(*const MDBX_env, *const MDBX_txn, i32, u64, u64, u32, usize, i32) -> i32>

Available on crate feature provider only.