Module util 

Small helpers: instrument ids, intervals, times.

Functions

instrument_id

The id of an instrument: the symbol and the category.

interval_label

The interval word of the API for a timeframe, None for a timeframe the exchange has no candles for (10 minutes).

nanos_to_ms

Milliseconds since the epoch from nanoseconds.

symbol_category

The symbol and the category of an instrument id.