Added Function to evaluated items

ziffers/mapper.py

@@ -29,7 +29,7 @@ from .classes import (
     RepeatedSequence,
     VariableAssignment,
     Variable,
-    Measure,
+    Measure
 )
 from .common import flatten, sum_dict
 from .defaults import DEFAULT_DURS, OPERATORS
@@ -459,4 +459,4 @@ class ZiffersTransformer(Transformer):
             repeats=items[1],
             wrap_start="",
             wrap_end=":" + items[1].text,
-        )
+        )