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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 list_projects(self, ignore_default_project_node=True):
 """ Returns the Model projects. :param ignore_default_project_node: Default ProjectNode will be ignored. :type ignore_default_project_node: bool :return: ProjectNode nodes. :rtype: list """


        return [project_node.path for project_node in self.list_project_nodes(ignore_default_project_node) if
                project_node.path]