code: public java.lang.String getJwksUri() {
      java.lang.Object ref = jwksUri_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        jwksUri_ = s;
        return s;
      }
    }
docs: <pre>
  URL of the provider's public key set to validate signature of the JWT. See
  [OpenID Discovery](https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderMetadata).
  Optional if the key set document:
  - can be retrieved from
  [OpenID Discovery](https://openid.net/specs/openid-connect-discovery-1_0.html
  of the issuer.
  - can be inferred from the email domain of the issuer (e.g. a Google service account).
  Example: https://www.googleapis.com/oauth2/v1/certs
  </pre>
  
  <code>string jwks_uri = 3;</code>