URL templates missing quotes around enum types

[zengin]

According to the spec, it seems that we need quotes around the enum type name but not the namespace:
http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part2-url-conventions.html#sec_PrimitiveLiterals

ColorEnumValue eq Sales.Pattern'Yellow',
ColorEnumValue eq 'Yellow',

These quotes are missing in the translated OpenAPI doc.

see microsoftgraph/msgraph-sdk-dotnet#1156 for more details.

[baywet]

Thanks for reporting the issue. Although the example you provided mentions enum, the original issue is with functions parameters. I've just authored #143 to address this issue.