In Tilus and Hidet, we use the following way to define data types:

class IntegerType(DataType):
    ...

int32 = IntegerType(...)

We use types like int32 as the type hint in the DSL:

class MyKernel(tilus.Script):
    def __call__(self, a: int32):
        ...

IDEs like PyCharm and VSCode will report warning like

Type hint is invalid or refers to the expression which is not a correct type

We need to change the way of defining data types to avoid such warning.

Workaround: to temporarily disable the warning, we can configure the IDE settings.

• For PyCharm:
  Settings -> Editor -> Inspections -> Python -> Security -> Unmark "Invalid type hints usage and definitions".