How to obtain output only through the function's return value, rather than having to use print?

- Here is a sample code. In the code
```PYTHON
# declare main function here
def main() -> dict:
print(1111)
return {"message": [1, 2, 3]}


output = main()
result = f"""<>
{output}
<>"""

print(result)
```

- The API call returns data as follows
```JSON
{
"code": 0,
"message": "success",
"data": {
"error": "",
"stdout": "1111\n<>\n{'message': [1, 2, 3]}\n<>\n"
}
}
```

- In the code, I only want to get the returned result, but the interface will also output other debugging print information. Can this be achieved?

Start with the Python main() example and the API response's stdout field. Trace how returned data and print output are combined, then verify that the API can expose only the function's returned result while excluding debugging output.

Written by the indexing model from the issue text.