Implement constructors

class.tmpl

@@ -1,7 +1,11 @@
 ---@diagnostic disable: missing-return
 {{range .Fields -}}
 ---@field {{.Name}} {{.Type}} {{.Comment}}
-{{end}}
+{{end -}}
+{{range .Constructors -}}
+---@overload fun({{range $index, $param := .Params}}{{if $index}}, {{end}}{{$param.Name}}: {{$param.Type}}{{end}}): {{$.ClassName}}
+{{end -}}
+---@class {{.ClassName}}
 {{.ClassName}} = {
 	{{$n := len .Methods -}}
 	{{$methods := len .Methods -}}
@@ -19,5 +23,6 @@
 	{{end}}{{end}}
 }
 
----@type ({{$.ClassName}} | fun(): {{$.ClassName}})
+---@type {{$.ClassName}}
+-- Define class globally so it's "available" to other files
 {{$.ClassName}} = nil