Data source API, getDataSourceSrv() help

Hi. I am using the GraphQL data source for my project: GraphQL Data Source plugin for Grafana | Grafana Labs.

I am creating a plugin (app) where I use this data source. So I use getDataSourceSrv().get(“mypluginname”) and I get this object:

But I can seem to access backendSrv from the DataSourceApi object within my program. Any help with this?