[View code on GitHub](https://github.com/creatorrr/turbo-chat/blob/master/turbo_chat/structs/result.py)

The code provided is part of the `turbo-chat` project and defines a `Result` class that holds the result yielded by a turbo app. The purpose of this class is to store the content of a message, whether the message requires user input, and whether the message processing is done.

The code starts by importing necessary modules and defining the `__all__` variable, which is a list containing the names of public objects that should be imported when the module is imported using a wildcard import statement.

Next, a `HasContent` protocol is defined. This protocol specifies that any class implementing it should have a `content` attribute of type `str`. This protocol is used later in the `Result` class to ensure that the message object passed to the `from_message` method has a `content` attribute.

The `Result` class is a subclass of `pydantic.BaseModel`, which is a data validation and parsing library. The class has three attributes:

1. `content`: This attribute stores the content of the message and can be of any type.
2. `needs_input`: This boolean attribute indicates whether the message requires user input. It defaults to `False`.
3. `done`: This boolean attribute indicates whether the message processing is done. It defaults to `False`.

The `Result` class also has a class method called `from_message`, which takes a `message` object and an optional `done` boolean parameter. This method first checks if the `message` object has a `content` attribute, as required by the `HasContent` protocol. If the check passes, it creates and returns a new `Result` instance with the `content` attribute set to the `content` of the message, the `needs_input` attribute set to `True` if the message is an instance of `GetInput`, and the `done` attribute set to the value of the `done` parameter.

Here's an example of how the `Result` class might be used in the larger project:

```python
# Create a message object with content
message = SomeMessage(content="Hello, world!")

# Create a Result instance from the message object
result = Result.from_message(message, done=True)

# Check if the result needs input and if it's done
if result.needs_input:
    # Get user input and process it
    pass
elif result.done:
    # Handle the completed result
    pass
```
## Questions: 
 1. **Question:** What is the purpose of the `HasContent` protocol in this code?
   **Answer:** The `HasContent` protocol is used to define a type that requires a `content` attribute of type `str`. This protocol is later used as a type hint for the `message` parameter in the `from_message` class method of the `Result` class.

2. **Question:** How does the `from_message` class method work and what does it return?
   **Answer:** The `from_message` class method takes a `message` object of type `HasContent` and an optional `done` boolean parameter. It checks if the `message` object has a `content` attribute and then creates and returns a new `Result` object with the `content` attribute set to the `message.content`, `needs_input` attribute set to `True` if the `message` is an instance of `GetInput`, and `done` attribute set to the provided `done` value.

3. **Question:** What is the purpose of the `Result` class and its attributes?
   **Answer:** The `Result` class is used to hold the result yielded by a turbo app. It has three attributes: `content` which can be of any type and holds the content of the result, `needs_input` which is a boolean indicating if the result requires input from the user, and `done` which is a boolean indicating if the processing is completed.