# NOT RUN {
if (fredr_has_key()) {
# Top 10 most popular series belonging to the "Employment Cost Index" category
fredr_category_series(category_id = 1L, limit = 10L, order_by = "popularity")
# Series in the "Employment Cost Index" category, ordered by descending observation frequency
fredr_category_series(category_id = 4L, order_by = "frequency", sort_order = "desc")
}
# }
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