Incorrect documented return type for `Container.top()`

[macdjord]

The documentation for Container.top() consistently claims that it returns a string. It does not; instead it returns a parsed JSON object which looks like this:

{
    "Processes": [
        [
            "centos",
            "65436",
            "65386",
            "0",
            "21:38",
            "?",
            "00:00:01",
            "python3 /home/foo/baz.py"
        ],
        [
            "centos",
            "65786",
            "65436",
            "0",
            "21:38",
            "?",
            "00:00:00",
            "/usr/local/bin/python3 /home/foo/bar.py"
        ]
    ],
    "Titles": ["UID", "PID", "PPID", "C", "STIME", "TTY", "TIME", "CMD"]
}

Note: I've only tested this in version 4.2.0, but it appears to remain true in the current version of the code.

[GhostLyrics]

Judging from the above, the actual return type should probably be:

Dict[str, Union[List[List[str]], List[str]]
# simplified example
{ "Processes": [ [ "centos", "65436" ], ["centos", "65786"] ], "Titles": ["UID, "PID" ] }