/// <summary>
/// Gets optional <see cref="IObjectSchema"/> from <see cref="IHasSchema"/> metadata.
/// </summary>
/// <param name="propertyContainer">Source property container.</param>
/// <returns>Optional <see cref="IMutableObjectSchema"/>.</returns>
public static IObjectSchema?GetSchema(this IPropertyContainer propertyContainer, bool autoCreateByProperties = false)
{
propertyContainer.AssertArgumentNotNull(nameof(propertyContainer));
if (propertyContainer.GetHasSchema() is { Schema : { } schema })
