Create a Pandas DataFrame named low$\_$pop$\_$df by selecting populations with a value $<70,000$ from the small$\_$df pandas DataFrame. Some options to accomplish this are the $.$query$()$ method or Boolean indexing.

country code population

$4$ Bermuda BER $65235$

$5$ Cayman Islands CAY $59967$

$6$ Saint Kitts and Nevis SKN $55572$

#finish the code

low$\_$pop$\_$df $=$ small$\_$df$...$