The FHIR path is: https://healthcare.googleapis.com/v1/projects/anvil-fhir-vumc/locations/us/datasets/anvil-research-studies/fhirStores/summary-example/fhir
This is the root path for the FHIR server which doesn't do much. You should provide a meaningful FHIR query.
Some example queries include:
You don't care for me I don't care about that Gotta new fool I like it like that I have only one burnin' desire Let me stand next to your FHIR - J. Hendrix