Dynamic property throws error

[pierophp]

When using a dynamic property, it throws the error: "object reference not set to an instance of an object"

public class TestDTO {
  public dynamic Name { get; set; }
}

Template:

{{- # Helper classes }}
{{- func ImportType(type)
    useType = Type.Unwrap(type)
    if (useType.ArrayType != null)
      useType = useType.ArrayType
    end

    path = "./"

    if (useType.Attributes)
        ret "import { " | String.Append useType.Name | String.Append " } from '" | String.Append path | String.Append useType.Name | String.Append "';\r"
    end
    ret null
    end
}}
}}
{{ for class in data.Classes | Symbols.WhereNameEndsWith "DTO"
       capture output -}}
{{- for type in class | Type.AllReferencedTypes | Array.Uniq -}}
{{- ImportType type}}
{{- end}}
export class {{ class.BareName }} {
{{- for property in class.Properties | Symbols.ThatArePublic }}
    {{ property.Name | String.ToCamelCase }}: {{ property.Type | Type.ToTypeScriptType }};
{{- end}}
}
{{- end
   Save output class.BareName + ".ts"
   end }}

The error throws at the "class | Type.AllReferencedTypes"

It should resolve "dynamic" as "any".