Function sp_state_machine::prove_execution

pub fn prove_execution<B, H, N, Exec>(
    backend: B, 
    overlay: &mut OverlayedChanges, 
    exec: &Exec, 
    spawn_handle: Box<dyn CloneableSpawn>, 
    method: &str, 
    call_data: &[u8], 
    runtime_code: &RuntimeCode
) -> Result<(Vec<u8>, StorageProof), Box<dyn Error>> where
    B: Backend<H>,
    H: Hasher,
    H::Out: Ord + 'static + Codec,
    Exec: CodeExecutor + Clone + 'static,
    N: BlockNumber, 

Prove execution using the given state backend, overlayed changes, and call executor.