Adding custom helpers to handlebars template engine

[iilyak]

I would like to be able to query from the inside of the template. I think it could be done if KCL would support injection of custom handlebars helper. The query syntax is TBD it could be jsonpath or rsonpath-lib or even KPL itself (if KCL has own query language I am very new to KCL). This discussion about custom helpers to template engine.

[Peefy]

cc @zong-zhe @He1pa

[He1pa]

Sorry, can you give me more information about what "template" means?

[iilyak]

The templates are meant to be used for plain text generation see https://github.com/orgs/kcl-lang/discussions/651

They are tracked in issue #313