Function execute_flow 

pub async fn execute_flow<A: Authenticator>(flow: &A) -> Result<()>

Executes an authentication flow and handles the resulting token.

Calls Authenticator::get_token on the provided flow, then attempts to copy the token to the system clipboard. If clipboard access is unavailable or fails, the token is printed to standard output as a fallback.

Arguments

• flow - Any type implementing the Authenticator trait.

Errors

Returns an error if the underlying authentication flow fails. Clipboard errors are handled gracefully and do not cause the function to fail.