Import Missing Item

darwinia-network · Nov 14, 2021 · 9a95546 · 9a95546
1 parent 94af041
commit 9a95546
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/frame/staking/src/lib.rs b/frame/staking/src/lib.rs
@@ -390,7 +390,7 @@ pub mod pallet {
 		offence::{Offence, OffenceDetails, OffenceError, OnOffenceHandler, ReportOffence},
 		SessionIndex,
 	};
-	use sp_std::collections::btree_map::BTreeMap;
+	use sp_std::{borrow::ToOwned, collections::btree_map::BTreeMap, prelude::*};
 	// --- darwinia-network ---
 	use crate::*;
 	use darwinia_staking_rpc_runtime_api::RuntimeDispatchInfo;