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added methods _contract_size_to_amount and _amount_to_contract_size, added _amount_to_contract_size to create_order, added contract_size_to_amount to get_min_leverage
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@ -667,7 +667,10 @@ class Exchange:
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# for cost (quote, stake currency), so max() is used here.
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# See also #2575 at github.
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return self._get_stake_amount_considering_leverage(
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max(min_stake_amounts) * amount_reserve_percent,
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self._contract_size_to_amount(
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pair,
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max(min_stake_amounts) * amount_reserve_percent
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),
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leverage or 1.0
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)
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@ -835,6 +838,20 @@ class Exchange:
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params.update({param: time_in_force})
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return params
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def _amount_to_contract_size(self, pair: str, amount: float):
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if ('contractSize' in self._api.markets[pair]):
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return amount / self._api.markets[pair]['contractSize']
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else:
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return amount
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def _contract_size_to_amount(self, pair: str, amount: float):
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if ('contractSize' in self._api.markets[pair]):
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return amount * self._api.markets[pair]['contractSize']
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else:
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return amount
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def create_order(self, pair: str, ordertype: str, side: str, amount: float,
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rate: float, leverage: float = 1.0, time_in_force: str = 'gtc') -> Dict:
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# TODO-lev: remove default for leverage
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@ -852,6 +869,7 @@ class Exchange:
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rate_for_order = self.price_to_precision(pair, rate) if needs_price else None
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self._lev_prep(pair, leverage)
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amount = self._amount_to_contract_size(pair, amount)
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order = self._api.create_order(
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pair,
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ordertype,
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