| ll_get_nuts_us | R Documentation | 
Source: https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html
ll_get_nuts_us(level = "county", resolution = "500k", year = 2018)
| level | Defaults to "county". Available options are: "cd116" (for congressional districts of the 116th Congress) | 
| resolution | Defaults to "500k", max available resolution. Available options are: "5m" and "20m" | 
| year | Defaults to 2018 | 
ll_get_nuts_us(level = "county", resolution = "500k", year = 2018)
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