How to use the snoop.pp function in snoop

def f4(x4):
    result4 = snoop.pp(x4 * 2)
    return result4

- `prefix`: Pass a string to start all snoop lines with that string so you can grep for them easily.
    - `columns`: This specifies the columns at the start of each output line. You can pass a string with the names of built in columns separated by spaces or commas. These are the available columns:
        - `time`: The current time. This is the only column by default.
        - `thread`: The name of the current thread.  
        - `thread_ident`: The [identifier](https://docs.python.org/3/library/threading.html#threading.Thread.ident) of the current thread, in case thread names are not unique.
        - `file`: The filename (not the full path) of the current function.
        - `full_file`: The full path to the file (also shown anyway when the function is called).
        - `function`: The name of the current function.
        - `function_qualname`: The qualified name of the current function.
        
        If you want a custom column, please open an issue to tell me what you're interested in! In the meantime, you can pass a list, where the elements are either strings or callables. The callables should take one argument, which will be an `Event` object. It has attributes `frame`, `event`, and `arg`, as specified in [`sys.settrace()`](https://docs.python.org/3/library/sys.html#sys.settrace), and other attributes which may change. 
    """
    
    if builtins:
        setattr(builtins_module, snoop, package.snoop)
        setattr(builtins_module, pp, package.pp)
        setattr(builtins_module, spy, package.spy)
    config = Config(
        out=out,
        prefix=prefix,
        columns=columns,
        overwrite=overwrite,
        color=color,
        enabled=enabled,
        watch_extras=watch_extras,
        replace_watch_extras=replace_watch_extras,
        formatter_class=formatter_class,
    )
    package.snoop.config = config
    package.pp.config = config
    package.spy.config = config

setattr(builtins_module, snoop, package.snoop)
        setattr(builtins_module, pp, package.pp)
        setattr(builtins_module, spy, package.spy)
    config = Config(
        out=out,
        prefix=prefix,
        columns=columns,
        overwrite=overwrite,
        color=color,
        enabled=enabled,
        watch_extras=watch_extras,
        replace_watch_extras=replace_watch_extras,
        formatter_class=formatter_class,
    )
    package.snoop.config = config
    package.pp.config = config
    package.spy.config = config