@staticmethod
def is_track_line(line):
    """
        A track line begins with the identifier track and followed by attribute/value pairs 
        for instance: ::

          track type=wiggle_0 name="fixedStep" description="fixedStep format" visibility=full autoScale=off
        
        :param line: line to parse.
        :type line: string
        :return: True if line is a track line. False otherwise.
        :rtype: boolean
        """
    return line.startswith('track')
