Error (test-tss.R:128:5): tss optionally returns Pairs with query range
Error in `x[[n]]`: this S4 class is not subsettable
Backtrace:
 1. testthat::expect_equal(first(pairs), tss) test-tss.R:128:4
 4. dplyr::first(pairs)
 5. dplyr::nth(x, 1L, order_by = order_by, default = default)