t() :: %Ccxtex.Market{ active: boolean() | nil, base: String.t() | nil, base_id: String.t() | nil, id: String.t() | nil, info: map() | nil, limits: map() | nil, precision: map() | nil, quote: String.t() | nil, quote_id: String.t() | nil, symbol: String.t() | nil, symbol_id: String.t() | nil }