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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 from_dict(cls, acl_dict):
 """ ACL from dict """

        perms = acl_dict.get("perms", Permissions.ALL)
        id_dict = acl_dict.get("id", {})
        id_scheme = id_dict.get("scheme", "world")
        id_id = id_dict.get("id", "anyone")
        return ACL(perms, Id(id_scheme, id_id))