added case for ellipsis in typing object to coerce

Author: adsouza

pydra/utils/typing.py

@@ -421,6 +421,10 @@ def check_tuple(tp_args, pattern_args):
                 for arg in tp_args:
                     expand_and_check(arg, pattern_args[0])
                 return
+            elif tp_args[-1] is Ellipsis:
+                for pattern_arg in pattern_args:
+                    expand_and_check(tp_args[0], pattern_arg)
+                return
             if len(tp_args) != len(pattern_args):
                 raise TypeError(
                     f"Wrong number of type arguments in tuple {tp_args}  compared to pattern "