litFixtureSync want getScopedElementsTemplate but fixtureSync call it without this argument

[RoXuS]

Expected behavior

Use fixtureSync (with options.scopedElements).

Actual Behavior

TypeError: getScopedElementsTemplate is not a function

Additional context

fixtureSync call litFixtureSync without getScopedElementsTemplate, it produce an error because this argument is mandatory in case of option.scopedElements.

See above:

[RoXuS]

You should:

• import getScopedElementsTemplate instead of use as an argument and it should be ok.
• or add it to an argument of fixtureSync function but you have to expose getScopedElementsTemplate (currently is not exposed so we can use it outside the package).