public void IsKeyOf <TKey, TValue>(IDictionary <TKey, TValue> value, TKey expectedKey, string keyLabel = null)
{
if (!Ensure.IsActive)
{
return;
}
if (!value.ContainsKey(expectedKey))
{
throw new ArgumentException(EnsureExceptionMessages.Collections_ContainsKey_Failed.Inject(expectedKey, keyLabel ?? ParamName.Prettify()), ParamName);
}
}