How to properly mixin libraryResource() pipeline task???

[TInaTinaTian L]

Hello,

package com.mycompany;
import org.jenkinsci.plugins.workflow.libs.*;

this.metaClass.mixin(ResourceStep)
def read(fileName) {
  return libraryResource(fileName)
}

return this

I have the above LibraryResource.groovy file that basically just delegates to the libraryResource() pipeline step from the Jenkins Pipeline steps. I can't find a way to compile it unfortunately. 

I probably need to import the right class first and then mixin that class into the above LibraryResource class I wrote??? 
Any help is welcome :)