async fn sign_guardian_metadata_preserving_iroh_endpoint(
db: &Database,
identity: PeerId,
broadcast_secret_key: &SecretKey,
new_metadata: GuardianMetadata,
) -> SignedGuardianMetadataasync fn sign_guardian_metadata_preserving_iroh_endpoint(
db: &Database,
identity: PeerId,
broadcast_secret_key: &SecretKey,
new_metadata: GuardianMetadata,
) -> SignedGuardianMetadata