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from dataclasses import dataclass
@dataclass
class RTCSessionDescription:
"""
The :class:`RTCSessionDescription` dictionary describes one end of a
connection and how it's configured.
"""
sdp: str
type: str
def __post_init__(self):
if self.type not in {"offer", "pranswer", "answer", "rollback"}:
raise ValueError(
"'type' must be in ['offer', 'pranswer', 'answer', 'rollback'] "
f"(got '{self.type}')"
)
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