/// <summary>
/// Adds the specified <see cref="UnitValue{TValue,TUnit}"/> objects and returns the result.
/// </summary>
/// <typeparam name="TValue">The value type.</typeparam>
/// <typeparam name="TUnit">The unit type.</typeparam>
/// <param name="lhs">The left-hand operator.</param>
/// <param name="rhs">The right-hand operator.</param>
/// <returns>The resulting value, if the operation was successful; otherwise, <c>default</c>.</returns>
public static UnitValue <TValue, TUnit> Add <TValue, TUnit>
(
this UnitValue <TValue, TUnit> lhs,
UnitValue <TValue, TUnit> rhs
)
where TUnit : struct
where TValue : struct, IEquatable <TValue> =>
lhs.Binary(
rhs,
(left, right) => !(left.Value is float leftValue)
