--- a
+++ b/R/utils-pipe.R
@@ -0,0 +1,18 @@
+#' Pipe operator
+#'
+#' See \code{magrittr::\link[magrittr]{\%>\%}} for details.
+#'
+#' @name %>%
+#' @rdname pipe
+#' @keywords internal
+#' @export
+#' @importFrom magrittr %>%
+#' @usage lhs \%>\% rhs
+NULL
+
+
+.attach_this <- function() { # nocov start
+  if (!"UCSCXenaTools" %in% (.packages())) {
+    attachNamespace("UCSCXenaTools")
+  } # nocov end
+}