120     def __init__(self, policy=compat32):  argument
121         self.policy = policy
137     def as_string(self, unixfrom=False, maxheaderlen=0, policy=None):  argument
152         policy = self.policy if policy is None else policy
157                       policy=policy)
166     def as_bytes(self, unixfrom=False, policy=None):  argument
175         policy = self.policy if policy is None else policy
177         g = BytesGenerator(fp, mangle_from_=False, policy=policy)
288                 self.policy.handle_defect(self, defect)
399         max_count = self.policy.header_max_count(name)
409         self._headers.append(self.policy.header_store_parse(name, val))
448         return [self.policy.header_fetch_parse(k, v)
459         return [(k, self.policy.header_fetch_parse(k, v))
471                 return self.policy.header_fetch_parse(k, v)
510                 values.append(self.policy.header_fetch_parse(k, v))
555                 self._headers[i] = self.policy.header_store_parse(k, _value)
875                 newheaders.append(self.policy.header_store_parse(h, val))
947     def __init__(self, policy=None):  argument
948         if policy is None:
949             from email.policy import default
950             policy = default
951         super().__init__(policy)
954     def as_string(self, unixfrom=False, maxheaderlen=None, policy=None):  argument
965         policy = self.policy if policy is None else policy
967             maxheaderlen = policy.max_line_length
968         return super().as_string(unixfrom, maxheaderlen, policy)
971         return self.as_string(policy=self.policy.clone(utf8=True))
1095             content_manager = self.policy.content_manager
1100             content_manager = self.policy.content_manager
1119             part = type(self)(policy=self.policy)
1143         part = type(self)(policy=self.policy)