CrewAIAgent

To install, run:

```bash
pip install copilotkit[crewai]
```

Every agent must have the `name` and either `crew` or `flow` properties defined. An optional 
`description` can also be provided. This is used when CopilotKit is dynamically routing requests 
to the agent.

## Serving a Crew based agent

To serve a Crew based agent, pass in a `Crew` object to the `crew` parameter.

Note:
You need to make sure to have a `chat_llm` set on the `Crew` object.
See [the CrewAI docs](https://docs.crewai.com/concepts/cli#9-chat) for more information.

```python
from copilotkit import CrewAIAgent


CrewAIAgent(
    name="email_agent_crew",
    description="This crew based agent sends emails",
    crew=SendEmailCrew(),
)
```

## Serving a Flow based agent

To serve a Flow based agent, pass in a `Flow` object to the `flow` parameter.

```python
CrewAIAgent(
    name="email_agent_flow",
    description="This flow based agent sends emails",
    flow=SendEmailFlow(),
)
```

Note:
Either a `crew` or `flow` must be provided to CrewAIAgent.

This is used for advanced cases where you want to customize how CopilotKit interacts with
CrewAI.

```python
# Function signatures:
def merge_state(
    *,
    state: dict,
    messages: List[BaseMessage],
    actions: List[Any],
    agent_name: str
):
    # ...implementation...

```