Remove name in output

peak_signal_to_noise_ratio.py

@@ -89,5 +89,5 @@ class PeakSignaltoNoiseRatio(evaluate.Metric):
         psnrs = list(map(
             lambda args: peak_signal_noise_ratio(*args, data_range=data_range), samples
         ))
-        return {"Peak Signal-to-Noise Ratio": np.average(psnrs, weights=sample_weight)}
+        return np.average(psnrs, weights=sample_weight)
         

tests.py

@@ -2,11 +2,11 @@ test_cases = [
     {
         "predictions": [[0.1, 0.1], [1.1, 0.1]],
         "references": [[0.1, 0.1], [1.1, 0.1]],
-        "result": {"Peak Signal-to-Noise Ratio": 23.010298856486173}
+        "result": 23.010298856486173
     },
     {
         "predictions": [[0, 1], [0, 0]],
         "references": [[0, 0], [-1, -1]],
-        "result": {"Peak Signal-to-Noise Ratio": 1.2493873660829993}
+        "result": 1.2493873660829993
     }
 ]