t() :: %ExBitmex.Margin{
  account: term(),
  action: term(),
  amount: term(),
  available_margin: term(),
  commission: term(),
  confirmed_debit: term(),
  currency: term(),
  excess_margin: term(),
  excess_margin_pcnt: term(),
  gross_comm: term(),
  gross_exec_cost: term(),
  gross_last_value: term(),
  gross_mark_value: term(),
  gross_open_cost: term(),
  gross_open_premium: term(),
  indicative_tax: term(),
  init_margin: term(),
  maint_margin: term(),
  margin_balance: term(),
  margin_balance_pcnt: term(),
  margin_leverage: term(),
  margin_used_pcnt: term(),
  pending_credit: term(),
  pending_debit: term(),
  prev_realised_pnl: term(),
  prev_state: term(),
  prev_unrealised_pnl: term(),
  realised_pnl: term(),
  risk_limit: term(),
  risk_value: term(),
  session_margin: term(),
  state: term(),
  synthetic_margin: term(),
  target_excess_margin: term(),
  taxable_margin: term(),
  timestamp: term(),
  unrealised_pnl: term(),
  unrealised_profit: term(),
  var_margin: term(),
  wallet_balance: term(),
  withdrawable_margin: term()
}