I know I’ve seen someone describe how to do this, but I can’t find examples. I need to create a custom composite type using the SDK typing helper. For example I want a config item to be either a

th.ObjectType

or a

th.StringType

. How do I get a

th.Property

to accept that type?

You should be able to create a

th.CustomType()

with any arbitrary JSON Schema definition, and then wrap that in a

Property

declaration.

Like this?:

stream_properties.append(
        th.Property(
            "schema",
            th.CustomType({"anyOf": [{"type": "string"}, {"type": "null"}, {"type:": "object"}]}),
            required=False,
            description="A valid Singer schema or a path-like string that provides "
                        "the path to a `.json` file that contains a valid Singer "
                        "schema. If provided, the schema will not be inferred from "
                        "the results of an api call."
        ),
    )

Yeah, that looks right to me!