from agno.agent import Agentfrom agno.tools.visualization import VisualizationToolsagent = Agent( instructions=[ "You are a data visualization assistant that creates charts and plots", "Generate clear, informative visualizations based on user data", "Save charts to files and provide insights about the data", ], tools=[VisualizationTools(output_dir="charts")], markdown=True,)agent.print_response("Create a bar chart showing sales by quarter: Q1=100, Q2=150, Q3=120, Q4=180")