extract_xyt             Extract values from a raster time series at
                        points in space and time
synthetic_reader        A reader function with no data behind it
synthetic_value         Value of the synthetic series, computed
                        directly
xyt_map_mirai           Run the per-slice reads on mirai daemons
xyt_reader_check        Check a function against the reader contract
xyt_source              Build a reader from a catalogue and a slice
                        function
