def get_lr_run_identifier(lrs):
    """Computes the run identifier for the given learning rates. Search identifier will not contain w_eval.

    Args:
        lrs (dict): That that contains the learning rate for every searched learning rate.

    Returns:
        str: String that uniquely represents a run with the given learning rates.
    """
    run_identifier = ""
    for val in ['w_search', 'alpha', 'beta']:
        try:
            run_identifier += f"{val}-{lrs[val]}_"
        except KeyError:
            break
    if 'w_eval' in lrs.keys():
        run_identifier += f"w_eval-{lrs['w_eval']}_"
    run_identifier = run_identifier[:-1]
    return run_identifier