title: Built r package: functions with the same name but from different package
body: <p>I want to write my own package and use "nodes" function from <em>bnlearn</em> and <em>graph</em> package. But when I check my package this warning appears:   </p>
  
  <p><strong>Warning: replacing previous import 'bnlearn::nodes' by 'graph::nodes' when loading 'mypackage'</strong></p>
  
  <p>I used "::" everywhere for <em>nodes</em> function to determine the package. But the warning message didn't solve.
  In advance thanks for your help.
  thank you all for your answers. I added "library(..., warn.conflicts=FALSE)" to my vignette but unfortunately, when I submit my package to cran, they reject it just for this one warning.</p>