from praisonaiagents import Agent, PraisonAIAgentsfrom langchain_community.tools.riza.command import ExecPythoncoder_agent = Agent(instructions="""word = "strawberry" count = word.count("r") print(f"There are {count}'R's in the word 'Strawberry'")""", tools=[ExecPython])agents = PraisonAIAgents(agents=[coder_agent])agents.start()