helpers

Convert UTC date to milliseconds

If using offset strings add "UTC" to date string e.g. "now UTC", "11 hours ago UTC"

See dateparse docs for formats http://dateparser.readthedocs.io/en/latest/

:param date_str: date in readable format, i.e. "January 01, 2018", "11 hours ago UTC", "now UTC"

Convert a Binance interval string to milliseconds

:param interval: Binance interval string, e.g.: 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 8h, 12h, 1d, 3d, 1w

:return: int value of interval in milliseconds None if interval prefix is not a decimal integer None if interval suffix is not one of m, h, d, w

Rounds a given quantity to a specific step size

:param quantity: required :param step_size: required

:return: decimal

check if there is an event loop in the current thread, if not create one inspired by https://stackoverflow.com/questions/46727787/runtimeerror-there-is-no-current-event-loop-in-thread-in-async-apscheduler