gnu: Add r-rtweet.

* gnu/packages/cran.scm (r-rtweet): New variable.

gnu/packages/cran.scm

@@ -27965,3 +27965,34 @@ (define-public r-rworldmap
     (description
       "Enables mapping of country level and gridded user datasets.")
     (license license:gpl2+)))
+
+(define-public r-rtweet
+  (package
+    (name "r-rtweet")
+    (version "0.7.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (cran-uri "rtweet" version))
+        (sha256
+          (base32
+            "05pbvxm2vmf6935b9s6663k3aifnkr3m52wh2jvnplmrwyrfpn9n"))))
+    (properties `((upstream-name . "rtweet")))
+    (build-system r-build-system)
+    (propagated-inputs
+      `(("r-httpuv" ,r-httpuv)
+        ("r-httr" ,r-httr)
+        ("r-jsonlite" ,r-jsonlite)
+        ("r-magrittr" ,r-magrittr)
+        ("r-progress" ,r-progress)
+        ("r-rcpp" ,r-rcpp)
+        ("r-tibble" ,r-tibble)))
+    (native-inputs `(("r-knitr" ,r-knitr)))
+    (home-page
+      "https://docs.ropensci.org/rtweet/")
+    (synopsis "Collecting Twitter Data")
+    (description
+      "An implementation of calls designed to collect and organize Twitter data
+via @url{https://developer.twitter.com/en/docs,Twitter's REST and stream
+Application Program Interfaces (API)}.")
+    (license license:expat)))