@type t() :: %Bingex.Swap.PositionInfo{
  available_quantity: float(),
  average_price: float(),
  create_time: non_neg_integer(),
  initial_margin: float(),
  isolated?: boolean(),
  leverage: pos_integer(),
  liquidation_price: float(),
  margin: float(),
  mark_price: float(),
  only_one_position?: boolean(),
  pnl_ratio: float(),
  position_id: binary(),
  position_quantity: float(),
  position_side: binary(),
  position_value: float(),
  realised_profit: float(),
  risk_rate: float(),
  symbol: binary(),
  unrealised_profit: float(),
  update_time: non_neg_integer()
}