Follow PEP 484 - no implicit optionals
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@@ -281,7 +281,7 @@ class DataProvider:
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def historic_ohlcv(
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self,
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pair: str,
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timeframe: str = None,
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timeframe: Optional[str] = None,
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candle_type: str = ''
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) -> DataFrame:
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"""
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@@ -333,7 +333,7 @@ class DataProvider:
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def get_pair_dataframe(
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self,
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pair: str,
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timeframe: str = None,
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timeframe: Optional[str] = None,
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candle_type: str = ''
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) -> DataFrame:
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"""
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@@ -415,7 +415,7 @@ class DataProvider:
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def refresh(self,
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pairlist: ListPairsWithTimeframes,
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helping_pairs: ListPairsWithTimeframes = None) -> None:
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helping_pairs: Optional[ListPairsWithTimeframes] = None) -> None:
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"""
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Refresh data, called with each cycle
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"""
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@@ -439,7 +439,7 @@ class DataProvider:
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def ohlcv(
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self,
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pair: str,
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timeframe: str = None,
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timeframe: Optional[str] = None,
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copy: bool = True,
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candle_type: str = ''
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) -> DataFrame:
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