Use context manager to change options locally

[wilsonfreitas]

A project might set a specific option to bizdays.
But in another part, it needs to change this option.
This should be done locally with context managers.

from bizdays import set_option, Calendar, option

set_option("mode", "pandas")
cal = Calendar.load("B3")

with bizdays.option("mode", "datetime"):
    cal.bizdays(date1, date2)