Add getParent method to Node class

include/aidge/graph/Node.hpp

@@ -303,7 +303,7 @@ public:
    * @param inId Input index.
    * @return std::shared_ptr<Node>&
    */
-  inline NodePtr &getParents(const IOIndex_t inId) {
+  inline NodePtr &getParent(const IOIndex_t inId) {
     assert(inId != gk_IODefaultIndex);
     return mParents.at(inId);
   }

src/graph/GraphView.cpp

@@ -326,7 +326,7 @@ void Aidge::GraphView::add(std::shared_ptr<Node> node, bool includeLearnablePara
   // add learnable parameters to the graph
   if (includeLearnableParam) {
     for (IOIndex_t i = node->nbDataInputs(); i < node->nbInputs(); ++i) {
-      std::shared_ptr<Node> parentNode = node->getParents(static_cast<IOIndex_t>(i));
+      std::shared_ptr<Node> parentNode = node->getParent(static_cast<IOIndex_t>(i));
       if (parentNode) {
           parentNode->addView(shared_from_this());
           mNodes.insert(parentNode);

src/graph/Node.cpp

@@ -226,7 +226,7 @@ void Aidge::Node::addChild(std::shared_ptr<GraphView> otherView, const IOIndex_t
 }
 
 void Aidge::Node::addParent(const std::shared_ptr<Node> other_node, const IOIndex_t inId) {
-    if (getParents(inId) != nullptr) {
+    if (getParent(inId) != nullptr) {
         printf("Warning, you're replacing a Parent.\n");
     }
     assert((inId != gk_IODefaultIndex) && (inId < nbInputs()) && "Input index out of bound.");

src/recipies/FuseMulAdd.cpp

@@ -59,12 +59,12 @@ void Aidge::fuseMulAdd(std::set<std::shared_ptr<Node>> nodes){
 
     // Step 2 : Branch existing producers & create the others
     // link weights & bias
-    if (matmul->getParents(1)==nullptr) {
-        matmul->getParents(0)->addChild(fc, 0, 1);
+    if (matmul->getParent(1)==nullptr) {
+        matmul->getParent(0)->addChild(fc, 0, 1);
     } else {
-        if (matmul->getParents(0)!=nullptr)
-            matmul->getParents(0)->addChild(fc, 0, 0);
-        matmul->getParents(1)->addChild(fc, 0, 1);
+        if (matmul->getParent(0)!=nullptr)
+            matmul->getParent(0)->addChild(fc, 0, 0);
+        matmul->getParent(1)->addChild(fc, 0, 1);
     }
     (producer_add_bias.first)->addChild(fc,0,2);