/// <summary>
/// Adds a property based on an indexer to this entity type.
/// </summary>
/// <param name="entityType"> The entity type to add the property to. </param>
/// <param name="name"> The name of the property to add. </param>
/// <param name="propertyType"> The type of value the property will hold. </param>
/// <returns> The newly created property. </returns>
public static IMutableProperty AddIndexedProperty(
[NotNull] this IMutableEntityType entityType, [NotNull] string name, [NotNull] Type propertyType)
=> Check.NotNull(entityType, nameof(entityType))
.AddProperty(name, propertyType, entityType.GetIndexerProperty());
