center_interval	center_interval
closest_weekday	closest_weekday
coffee	coffee
emergency	emergency
fill_by_function	fill_by_function
fill_by_prevalent	fill_by_prevalent
fill_by_value	fill_by_value
format_interval	format_interval
get_interval	get_interval
pad	pad
pad_cust	pad_cust
pad_int	pad_int
span_around	span_around
span_date	span_date
span_time	span_time
subset_span	subset_span
thicken	thicken
thicken_cust	thicken_cust
