diff --git a/lib/utils/include/utils/graph/query_set.h b/lib/utils/include/utils/graph/query_set.h
index ee54f07446..957f73cb1a 100644
--- a/lib/utils/include/utils/graph/query_set.h
+++ b/lib/utils/include/utils/graph/query_set.h
@@ -11,14 +11,12 @@ namespace FlexFlow {
 template <typename T>
 struct query_set {
   query_set() = delete;
-  query_set(T const &) {
-    NOT_IMPLEMENTED();
+  query_set(T const & query) : query({query}) {
+    std::cout<<"1"<<std::endl;
   }
   query_set(std::unordered_set<T> const &query) : query(query) {}
 
-  query_set(optional<std::unordered_set<T>> const &) {
-    NOT_IMPLEMENTED();
-  }
+  query_set(optional<std::unordered_set<T>> const & query): query(query) {}
 
   friend bool operator==(query_set const &lhs, query_set const &rhs) {
     return lhs.value == rhs.value;
@@ -72,13 +70,15 @@ template <typename C,
           typename K = typename C::key_type,
           typename V = typename C::mapped_type>
 std::unordered_map<K, V> query_keys(query_set<K> const &q, C const &m) {
+  std::cout<<"3"<<std::endl;
   NOT_IMPLEMENTED();
-}
+}//TODO
 
 template <typename C,
           typename K = typename C::key_type,
           typename V = typename C::mapped_type>
 std::unordered_map<K, V> query_values(query_set<V> const &q, C const &m) {
+  std::cout<<"4"<<std::endl;
   NOT_IMPLEMENTED();
 }
 
diff --git a/lib/utils/src/graph/multidigraph.cc b/lib/utils/src/graph/multidigraph.cc
index 2ddcb22b60..6ecec72495 100644
--- a/lib/utils/src/graph/multidigraph.cc
+++ b/lib/utils/src/graph/multidigraph.cc
@@ -13,9 +13,9 @@ MultiDiOutput get_output(MultiDiEdge const &e) {
 MultiDiEdgeQuery
     MultiDiEdgeQuery::with_src_nodes(query_set<Node> const &nodes) const {
   MultiDiEdgeQuery e = *this;
-  if (is_matchall(e.srcs)) {
-    throw mk_runtime_error("Expected matchall previous value");
-  }
+  // if (is_matchall(e.srcs)) {
+  //   throw mk_runtime_error("Expected matchall previous value");
+  // }
   e.srcs = nodes;
   return e;
 }
@@ -32,9 +32,9 @@ MultiDiEdgeQuery MultiDiEdgeQuery::with_src_node(Node const &n) const {
 MultiDiEdgeQuery
     MultiDiEdgeQuery::with_dst_nodes(query_set<Node> const &nodes) const {
   MultiDiEdgeQuery e = *this;
-  if (is_matchall(e.dsts)) {
-    throw mk_runtime_error("Expected matchall previous value");
-  }
+  // if (is_matchall(e.dsts)) {
+  //   throw mk_runtime_error("Expected matchall previous value");
+  // }
   e.dsts = nodes;
   return e;
 }
@@ -76,9 +76,9 @@ MultiDiEdgeQuery MultiDiEdgeQuery::with_dst_idx(NodePort const &p) const {
 MultiDiEdgeQuery
     MultiDiEdgeQuery::with_src_idxs(query_set<NodePort> const &idxs) const {
   MultiDiEdgeQuery e{*this};
-  if (is_matchall(e.srcIdxs)) {
-    throw mk_runtime_error("Expected matchall previous value");
-  }
+  // if (is_matchall(e.srcIdxs)) {
+  //   throw mk_runtime_error("Expected matchall previous value");
+  // }
   e.srcIdxs = idxs;
   return e;
 }
@@ -86,9 +86,9 @@ MultiDiEdgeQuery
 MultiDiEdgeQuery
     MultiDiEdgeQuery::with_dst_idxs(query_set<NodePort> const &idxs) const {
   MultiDiEdgeQuery e = *this;
-  if (is_matchall(e.dstIdxs)) {
-    throw mk_runtime_error("Expected matchall previous value");
-  }
+  // if (is_matchall(e.dstIdxs)) {
+  //   throw mk_runtime_error("Expected matchall previous value");
+  // }
   e.dstIdxs = idxs;
   return e;
 }
diff --git a/lib/utils/src/graph/views.cc b/lib/utils/src/graph/views.cc
index 8c0da05971..98f2ab7271 100644
--- a/lib/utils/src/graph/views.cc
+++ b/lib/utils/src/graph/views.cc
@@ -55,6 +55,7 @@ std::unordered_set<MultiDiEdge> ViewOpenMultiDiGraphAsMultiDiGraph::query_edges(
   // }
 
   // return result;
+  std::cout<<"5"<<std::endl;
   NOT_IMPLEMENTED();
 }