schema.json

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "http://foo.qwerty/some/schema#",
    "title": "Foo Schema",
    "type": "object",
    "properties": {
        "title": {
            "type": "string"
        },
        "awesome": {
            "type": "number"
        }
    },
    "required": ["title"]
}

someCodeWithAnnotations.py

from jsonschema_typed.types import JSONSchema

data: JSONSchema['path/to/schema.json'] = dict(title='baz')
data['description'] = 'there is no description'  # TypedDict "FooSchema" has no key 'description'
data['awesome'] = 42
data['awesome'] = None  # Argument 2 has incompatible type "None"; expected "Union[int, float]"