Add case for weight type

[sighphyre]

Describe the feature request

Currently there's no test case for a variant that specifies a weight type

Background

This is assumed to be variable if not specified but this is an import case for ensuring that the client response is correctly parsed, since it's very easy to miss when building an implementation and if the implementation doesn't ignore unknown fields or handle this then it'll fail to parse

Solution suggestions

Add a test case for this

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.