rpc: add query consensus validators

crates/sdk/src/rpc.rs

@@ -39,6 +39,7 @@ use namada_parameters::{storage as params_storage, EpochDuration};
 use namada_proof_of_stake::parameters::PosParams;
 use namada_proof_of_stake::types::{
     BondsAndUnbondsDetails, CommissionPair, ValidatorMetaData,
+    WeightedValidator,
 };
 use namada_state::LastBlock;
 use namada_tx::data::{BatchedTxResult, DryRunResult, ResultCode, TxResult};
@@ -733,6 +734,19 @@ pub async fn get_all_validators<C: crate::queries::Client + Sync>(
     )
 }
 
+/// Get all consensus validators in the given epoch
+pub async fn get_all_consensus_validators<C: crate::queries::Client + Sync>(
+    client: &C,
+    epoch: Epoch,
+) -> Result<BTreeSet<WeightedValidator>, error::Error> {
+    convert_response::<C, _>(
+        RPC.vp()
+            .pos()
+            .consensus_validator_set(client, &Some(epoch))
+            .await,
+    )
+}
+
 /// Get the total staked tokens in the given epoch
 pub async fn get_total_staked_tokens<C: crate::queries::Client + Sync>(
     client: &C,