https://renkun-ken.r-universe.dev/rtypehttps://renkun-ken.r-universe.dev/api/packages/rtypehttps://renkun-ken.r-universe.dev/rtype/rtype.pdfhttps://renkun-ken.r-universe.dev/rtype/doc/manual.htmlhttps://renkun-ken.r-universe.dev/rtype/NEWShttps://renkun-ken.r-universe.dev/rtype/NEWS.txthttps://renkun-ken.r-universe.dev/rtype/citationhttps://renkun-ken.r-universe.dev/rtype/citation.txthttps://renkun-ken.r-universe.dev/rtype/citation.cff