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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_path(value):
 """ Checks whether the given value represents a path, i.e. a string which starts with an indicator for absolute or relative paths. :param value: Value to check. :return: ``True``, if the value appears to be representing a path. :rtype: bool """

    return value and isinstance(value, six.string_types) and (value[0] == posixpath.sep or value[:2] == CURRENT_DIR)