v3.0.0-beta.4

Features

• Implements method callers (#666)
• Add method call reference resolver (#669)
• Make NativeLoader non-final and changed its API (#681)
• Make parameters accessible in identity (#698)

Bugfixes

• Fix edge case on OptionalValueResolver (#671)
• Fix escaping of the percent sign (#687)
• Fix usage of underscore in the function name (#702)