I would also like to see this feature introduced.
`bioguide` is a unique identifier for all representatives and is incredibly valuable for gathering information that spans multiple different services. Additionally, I've noticed that the google civic api fails to include images for some legislators. (Eg. Donald McEachin, VA-04; 117th Congress) Having a bioguide would ensure we have images for all legislators as the
congress.gov website provides predictable URLs for those images based on bioguide.
Here's McEachin's image based on bioguide.
https://bioguide.congress.gov/bioguide/photo/M/M001200.jpgMy teams only other option to retrieve bioguide based on constituent address is Geocodio, which we'd prefer not to use. The API is not free and is also substantially slower than the Google Civic API.