Add agent (and small dummy)

agent-extract/Dockerfile

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+ARG IMAGE_FROM
+FROM $IMAGE_FROM
+
+# become root
+USER root 
+
+# do somthing as root, e.g. install packages, set up things ...
+#	RUN ...
+
+# copy the source of the agent in this repo
+COPY --chown=user:user ./src/ /ums-agenten/project/src/
+#	fix permissions
+RUN chown -R user:user /ums-agenten
+#	switch back to user
+USER user

agent-extract/src/agent.py

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+# Agenten Plattform
+#
+# (c) 2024 Magnus Bender
+# 	Institute of Humanities-Centered Artificial Intelligence (CHAI)
+# 	Universitaet Hamburg
+# 	https://www.chai.uni-hamburg.de/~bender
+#  
+# source code released under the terms of GNU Public License Version 3
+# https://www.gnu.org/licenses/gpl-3.0.txt
+
+from ums.agent import ExtractAudioAgent, ExtractImageAgent
+
+from ums.utils.types import RiddleData
+
+"""
+	Examples for simple agents.
+
+	Each agent is represented by its own class. The handling of tasks is done by `handle()` in each agent.
+
+	Finally `AGENT_CLASSES` contains the classes of the agents in a list. Via environmental variables this list is specified to the ums.agent system. 
+"""
+
+class MyExtractAudioAgent(ExtractAudioAgent):
+
+	def handle(self, data: RiddleData) -> RiddleData:
+		print("Audio Process:", data.file_plain)
+		return data
+
+class MyExtractImageAgent(ExtractImageAgent):
+
+	def handle(self, data: RiddleData) -> RiddleData:
+		print("Image Process:", data.file_plain)
+		return data
+
+AGENT_CLASSES = [
+	MyExtractAudioAgent, MyExtractImageAgent
+]