rewrite to graph metrics

graph_dit/metrics/molecular_metrics_train.py

@@ -35,7 +35,13 @@ class CEPerClass(Metric):
 
     def compute(self):
         return self.total_ce / self.total_samples
+class NodeCE(CEPerClass):
+    def __init__(self, i):
+        super().__init__(i)
 
+class EdgeCE(CEPerClass):
+    def __init__(self, i):
+        super().__init__(i)
 
 class AtomCE(CEPerClass):
     def __init__(self, i):
@@ -65,6 +71,12 @@ class AromaticCE(CEPerClass):
     def __init__(self, i):
         super().__init__(i)
 
+class NodeMetricsCE(MetricCollection):
+    def __init__(self, active_nodes):
+        metrics_list = []
+
+        for i, node_type in enumerate(active_nodes) :
+            metrics_list.append(type(f'{node_type}_CE', (NodeCE,), {})(i))
 
 class AtomMetricsCE(MetricCollection):
     def __init__(self, active_atoms):
@@ -84,7 +96,12 @@ class BondMetricsCE(MetricCollection):
         ce_TR = TripleCE(3)
         super().__init__([ce_no_bond, ce_SI, ce_DO, ce_TR])
 
-# 
+#
+
+class TrainGraphMetricsDiscrete(nn.Module):
+    def __init__(self, dataset_infos):
+        super().__init__()
+
 class TrainMolecularMetricsDiscrete(nn.Module):
     def __init__(self, dataset_infos):
         super().__init__()