@startuml
abstract class PropertyDrawerBase {
    + <<sealed>> <<override>> OnGUI(rect:Rect, property:SerializedProperty, label:GUIContent) : void
    <<sealed>> <<override>> + GetPropertyHeight(property:SerializedProperty, label:GUIContent) : float
    + <<virtual>> GetHelpBoxHeight() : float
    + DrawDefaultPropertyAndHelpBox(rect:Rect, property:SerializedProperty, message:string, messageType:MessageType) : void
}
PropertyDrawer <|-- PropertyDrawerBase
@enduml