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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 jstemplate(parser, token):
 """Templatetag to handle any of the Mustache-based templates. Replaces ``[[[`` and ``]]]`` with ``{{{`` and ``}}}``, ``[[`` and ``]]`` with ``{{`` and ``}}`` and ``[%`` and ``%]`` with ``{%`` and ``%}`` to avoid conflicts with Django's template engine when using any of the Mustache-based templating libraries. """

    nodelist = parser.parse(('endjstemplate',))
    parser.delete_first_token()
    return JSTemplateNode(nodelist)