From 8e376dc03b8c9c16d041d3e4579d4e9ede51ba3c Mon Sep 17 00:00:00 2001
From: NC <17676176+ensi321@users.noreply.github.com>
Date: Tue, 7 Jan 2025 15:53:27 -0800
Subject: [PATCH] Use SubnetID for sync committee

---
 specs/altair/validator.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/specs/altair/validator.md b/specs/altair/validator.md
index 3602377acd..00dca30308 100644
--- a/specs/altair/validator.md
+++ b/specs/altair/validator.md
@@ -295,7 +295,7 @@ The `subnet_id` is derived from the position in the sync committee such that the
 *Note*: This function returns multiple deduplicated subnets if a given validator index is included multiple times in a given sync committee across multiple subcommittees.
 
 ```python
-def compute_subnets_for_sync_committee(state: BeaconState, validator_index: ValidatorIndex) -> Set[uint64]:
+def compute_subnets_for_sync_committee(state: BeaconState, validator_index: ValidatorIndex) -> Set[SubnetID]:
     next_slot_epoch = compute_epoch_at_slot(Slot(state.slot + 1))
     if compute_sync_committee_period(get_current_epoch(state)) == compute_sync_committee_period(next_slot_epoch):
         sync_committee = state.current_sync_committee
@@ -305,7 +305,7 @@ def compute_subnets_for_sync_committee(state: BeaconState, validator_index: Vali
     target_pubkey = state.validators[validator_index].pubkey
     sync_committee_indices = [index for index, pubkey in enumerate(sync_committee.pubkeys) if pubkey == target_pubkey]
     return set([
-        uint64(index // (SYNC_COMMITTEE_SIZE // SYNC_COMMITTEE_SUBNET_COUNT))
+        SubnetID(index // (SYNC_COMMITTEE_SIZE // SYNC_COMMITTEE_SUBNET_COUNT))
         for index in sync_committee_indices
     ])
 ```