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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 pagure_specific_project_filter(config, message, project=None, *args, **kw):
 """ Particular pagure projects Adding this rule allows you to get notifications for one or more `pagure.io <https://pagure.io>`_ projects. Specify multiple projects by separating them with a comma ','. """


    if not pagure_catchall(config, message):
        return False

    project = kw.get('project', project)
    link = fedmsg.meta.msg2link(message, **config)
    if not link:
        return False

    project = project.split(',') if project else []

    valid = False
    for proj in project:
        if '://pagure.io/%s/' % proj.strip() in link:
            valid = True

    return valid