address review comment (1)

src/gt4py/next/program_processors/runners/dace_fieldview/gtir_dataflow.py

@@ -298,16 +298,17 @@ def get_tuple_type(
     """
     Compute the `ts.TupleType` corresponding to the tuple structure of input data expressions.
     """
-    return ts.TupleType(
-        types=[
-            get_tuple_type(d)
-            if isinstance(d, tuple)
-            else d.get_field_type()
-            if isinstance(d, IteratorExpr)
-            else d.gt_dtype
-            for d in data
-        ]
-    )
+    data_types: list[ts.DataType] = []
+    for dataitem in data:
+        if isinstance(dataitem, tuple):
+            data_types.append(get_tuple_type(dataitem))
+        elif isinstance(dataitem, IteratorExpr):
+            data_types.append(dataitem.get_field_type())
+        elif isinstance(dataitem, MemletExpr):
+            data_types.append(dataitem.gt_dtype)
+        else:
+            data_types.append(dataitem.gt_dtype)
+    return ts.TupleType(data_types)
 
 
 @dataclasses.dataclass(frozen=True)