Pkg polish

Author: gregorgorjanc

tskitr/.Rbuildignore

@@ -6,6 +6,7 @@
 ^test\.trees$
 ^.*\.o$
 ^.*\.so$
+^\.covrignore$
 ^\.github$
 pkg_dev_notes.md
 ^codecov\.yml$

tskitr/DESCRIPTION

@@ -20,7 +20,7 @@ Description: Tskit (`tskit`) enables performant storage, manipulation, and analy
   and the `reticulate` approach.
 URL: https://github.com/highlanderlab/tskitr
 License: MIT + file LICENSE
-Imports: Rcpp (>= 1.1.0), Rdpack, reticulate
+Imports: methods, Rcpp (>= 1.1.0), Rdpack, reticulate
 LinkingTo: Rcpp
 Suggests:
     spelling, testthat

tskitr/NAMESPACE

@@ -27,6 +27,7 @@ export(tskit_version)
 importFrom(Rcpp,cppFunction)
 importFrom(Rcpp,registerPlugin)
 importFrom(Rdpack,reprompt)
+importFrom(methods,is)
 importFrom(reticulate,import)
 importFrom(reticulate,is_py_object)
 importFrom(reticulate,py_module_available)

tskitr/R/tskitr-package.R

@@ -13,6 +13,7 @@
 #' @keywords internal
 #'
 #' @useDynLib tskitr, .registration = TRUE
+#' @importFrom methods is
 #' @importFrom Rcpp registerPlugin cppFunction
 #' @importFrom reticulate is_py_object import py_module_available py_require
 #' @importFrom Rdpack reprompt