Add ArrayContext.is_array_type

Author: inducer

arraycontext/context.py

@@ -125,7 +125,7 @@
 )
 from warnings import warn
 
-from typing_extensions import Self, override
+from typing_extensions import Self, TypeIs, override
 
 from pytools import memoize_method
 
@@ -483,6 +483,10 @@ def outline(self,
         """
         return f
 
+    @classmethod
+    def is_array_type(cls, obj: object) -> TypeIs[Array]:
+        return isinstance(obj, cls.array_types)
+
     # undocumented for now
     @property
     @abstractmethod