Fluent interfaces do not work

[srg-kostyrko]

https://jsmonk.github.io/hegel/try#MYGwhgzhAEBCkEtgGEwmAV3AFwPYCdoBvAKGnOgDc0MBTALmgDsMBbAI1sIF5oAGANwkyFYLiYRs+DMDz4AFNRB1ovPgEpiIihWwALBBAB0Slb1O0hOgL7bomfPlpNsANRq156xiw5ctOjpO2Bj4TND6hiYeVhS2OmAAJonyuAAOXGBMiT5snPiapIG6BsYW0ADUvOmZ2bHFwaHhkRD10La2JKCQMADKwAjO2AgAZkio6FhgctC0AB7Yzokw8BDjaJg4BAH24pLSsgSKHqr8hXYQGBkKFuqx8dBrTF475C3RyrSnALLTekZPeTvW5tRphCKle4kTpiCTYaCJU5MWgAd2g-UGLlG60mWwUACZ1CIjEkUgBGInkAEIZ6U6BGBxOFzuT5eARAA

if a method returns this - it is inferred as the class where a method was defined, and this will break chaining if used with child class.
typescript has special type this that is polymorphic and solves this issues
it would be great if hegel would correctly infer this for such cases

[JSMonk]

Oh, thank you. It's an important thing. We will fix it soon.
Thank you a lot for your contribution ^_^.