Issue Setting Custom Accept Header in Warewolf Web Request Tool

I'm currently working on a service that requires setting a custom Accept header with the following value:

Accept: application/vnd.sasgtwy.v1+json

However, when I attempt to configure this in the HTTP Web Request tool within Warewolf, I receive the following message:

"The Accept header must be modified using the appropriate method or property parameter name: name"

It seems Warewolf expects the header to be set using a specific method or parameter, but it’s unclear how to apply this properly. I've tried adding it in the Headers section, but without success.