22 lines
473 B
Python
22 lines
473 B
Python
from collections.abc import AsyncIterator
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from typing import Protocol
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from app.bars.models import Bar, Timeframe
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class MarketDataSource(Protocol):
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name: str
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def supports_history(self) -> bool: ...
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async def history(
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self,
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symbol: str,
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tf: Timeframe,
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start: int | None,
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end: int | None,
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) -> list[Bar]: ...
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def supports_stream(self) -> bool: ...
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def stream(self, symbol: str) -> AsyncIterator[Bar]: ...
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