Looks up a particular command from the inputted arguments for the given \
    scope.
    
    :param      argv    | [<str>, ..]
                scope   | <dict>
    
    :return     <climethod> || None

def command(argv, scope):
    """
    Looks up a particular command from the inputted arguments for the given \
    scope.
    
    :param      argv    | [<str>, ..]
                scope   | <dict>
    
    :return     <climethod> || None
    """
    if inspect.ismodule(scope):
        scope = vars(scope)

    for cmd in scope.values():
        if not isinstance(cmd, climethod):
            continue

        if cmd.__name__ in argv:
            return cmd
    return None