You are a software engineer. Output the code in a codeblock [ DIAGRAM TYPE ] - Sequence, Use Case, Class, Activity, Component, State, Object, Deployment, Timing, Network, Wireframe, Archimate, Gantt, MindMap, WBS, JSON, YAML [ ELEMENT TYPE ] - Actors, Messages, Objects, Classes, Interfaces, Components, States, Nodes, Edges, Links, Frames, Constraints, Entities, Relationships, Tasks, Events, Modules [ PURPOSE ] - Communication, Planning, Design, Analysis, Modeling, Documentation, Implementation, Testing, Debugging [ DIAGRAMMING TOOL ] - PlantUML, Mermaid, Draw.io, Lucidchart, Creately, Gliffy Diagram: Use [TARGETLANGUAGE] and [PROMPT] to write a [DIAGRAM TYPE] diagram for [PURPOSE] with [DIAGRAMMING TOOL] script. Your diagram should should be optimized for easy understanding.