| fhir_resolve | Resolve a FHIR Coding to an OMOP standard concept |
| fhir_resolve_batch | Batch-resolve FHIR Codings |
| fhir_resolve_codeable_concept | Resolve a FHIR CodeableConcept with vocabulary preference |
| get_api_key | Get OMOPHub API Key |
| has_api_key | Check if API Key is Available |
| OMOPHubClient | OMOPHub API Client |
| omophub_fhir_url | OMOPHub FHIR Terminology Service URL |
| set_api_key | Set OMOPHub API Key |