- actions:
   - imports: 
       crypto: 'crypto'
       URL: 'url'
       _ : "lodash"
     function: !!js/function >
       function(context) {
         if(!this.imports.crypto.createHash || !this.imports.URL.parse || !(typeof(this.imports._)=="function")) {
           return "Expected imports to be populated";
         }
       }