add set_target_stakes_per_interval extrinsic

pallets/admin-utils/src/lib.rs

@@ -931,6 +931,24 @@ pub mod pallet {
             log::info!("TxMinDelegateTakeSet( tx_min_delegate_take: {:?} ) ", take);
             Ok(())
         }
+
+        /// The extrinsic sets the target stake per interval.
+        /// It is only callable by the root account.
+        /// The extrinsic will call the Subtensor pallet to set target stake per interval.
+        #[pallet::call_index(47)]
+        #[pallet::weight((0, DispatchClass::Operational, Pays::No))]
+        pub fn sudo_set_target_stakes_per_interval(
+            origin: OriginFor<T>,
+            target_stakes_per_interval: u64,
+        ) -> DispatchResult {
+            ensure_root(origin)?;
+            T::Subtensor::set_target_stakes_per_interval(target_stakes_per_interval);
+            log::info!(
+                "TxTargetStakesPerIntervalSet( set_target_stakes_per_interval: {:?} ) ",
+                target_stakes_per_interval
+            );
+            Ok(())
+        }
     }
 }
 
@@ -1023,4 +1041,5 @@ pub trait SubtensorInterface<AccountId, Balance, RuntimeOrigin> {
     fn get_nominator_min_required_stake() -> u64;
     fn set_nominator_min_required_stake(min_stake: u64);
     fn clear_small_nominations();
+    fn set_target_stakes_per_interval(target_stakes_per_interval: u64);
 }

pallets/admin-utils/tests/mock.rs

@@ -450,6 +450,10 @@ impl pallet_admin_utils::SubtensorInterface<AccountId, Balance, RuntimeOrigin> f
     fn clear_small_nominations() {
         SubtensorModule::clear_small_nominations();
     }
+
+    fn set_target_stakes_per_interval(target_stakes_per_interval: u64) {
+        SubtensorModule::set_target_stakes_per_interval(target_stakes_per_interval);
+    }
 }
 
 impl pallet_admin_utils::Config for Test {

runtime/src/lib.rs

@@ -1130,6 +1130,10 @@ impl
     fn get_nominator_min_required_stake() -> u64 {
         SubtensorModule::get_nominator_min_required_stake()
     }
+
+    fn set_target_stakes_per_interval(target_stakes_per_interval: u64) {
+        SubtensorModule::set_target_stakes_per_interval(target_stakes_per_interval)
+    }
 }
 
 impl pallet_admin_utils::Config for Runtime {