usecrate::value_error::ValueResult;/// Internal trait used to add multiple values to `MultiValues`.
////// This trait backs `MultiValues::add<S>()`; downstream code should call the
/// inherent method instead of implementing or naming this trait directly.
#[doc(hidden)]pubtraitMultiValuesMultiAdder<T> {/// Appends all values from `values`.
////// # Returns
////// Returns `Ok(())` when the values can be appended, or a `ValueError`
/// describing the type mismatch.
fnadd_values(&mutself, values:Vec<T>)->ValueResult<()>;}