pub async fn refresh_grant(
spec: &ProviderOAuthSpec,
refresh_token: &str,
) -> Result<RefreshedTokens>Expand description
Exchange a stored refresh_token for fresh access tokens at
spec.token_url.
Sends grant_type=refresh_token per RFC 6749 §6 with only the public
client_id — this CLI is a public PKCE client by design and never
carries a client_secret. Returns the parsed RefreshedTokens.