interface_build {
    {r.line} 0
    {Creates a new binary GRASS vector (v.digit) file by extracting linear features from a thinned raster file.}
    {entry input {Input raster map:} 0 raster}
    {entry output {Output vector file:} 0 vector}
    {checkbox type {Line vectors (default).} "" line}
    {checkbox type {Area vectors.} "" area}
}