def __init__(self, multi=None):
        self.multi = multi
        self.errors = 0
Returns a model with a valid _meta.local_fields (serializable).
dataset/ETHPy150Open anandology/pyjamas/pgen/lib2to3/compiler/syntax.py/SyntaxErrorChecker.__init__--crossover with--dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node._get_serializable_model