@classmethod
    def get(cls, name, default=None):

        s3 = current.response.s3
        if s3 is None:
            s3 = current.response.s3 = Storage()

        if name in s3:
            return s3[name]
        elif "_" in name:
            prefix = name.split("_", 1)[0]
            models = current.models
            if hasattr(models, prefix):
                module = models.__dict__[prefix]
                loaded = False
                generic = []
                for n in module.__all__:
                    model = module.__dict__[n]
                    if type(model).__name__ == "type":
                        if loaded:
                            continue
                        if hasattr(model, "names"):
                            if name in model.names:
                                model(prefix)
                                loaded = True
                                generic = []
                            else:
                                continue
                        else:
                            generic.append(n)
                    elif n.startswith("%s_" % prefix):
                        s3[n] = model
                [module.__dict__[n](prefix) for n in generic]
        if name in s3:
            return s3[name]
        elif isinstance(default, Exception):
            raise default
        else:
            return default

    # -------------------------------------------------------------------------
Helper function to load a response.s3 variable from models
dataset/ETHPy150Open sahana/eden/modules/s3/s3model.py/S3Model.get