set_extrapolation_years_nearest: Set the number of years to fill out using nearest available data
Description
Sets the number of years to fill out using nearest available data
at dataset edges, as a means of extrapolation. Turns extrapolation on
if it isn't already. Overrides the number of years to linearly
extrapolate if set.
if (FALSE) {
# Create a session using your API token (provided by environment here)session <- gdl_session(Sys.getenv('GDL_API_TOKEN'))
session <- set_extrapolation_years_nearest(session, 3)
}