message: added Debug trait for EmittedEvent
diff: @@ -24,7 +24,7 @@ use crate::{
  use std::collections::HashMap;
  /// Record for an emitted event.
  -#[derive(Clone)]
  +#[derive(Debug, Clone)]
  pub struct EmittedEvent {
  /// Recorded topics of the emitted event.
  pub topics: Vec<Vec<u8>>,
  