code: public void setFeatures(java.util.Collection<String> features) {
          if (features == null) {
              this.features = null;
              return;
          }
  
          this.features = new java.util.ArrayList<String>(features);
      }
docs: <p>
  A list of features supported for the account. When usage plans are enabled, the features list will include an
  entry of <code>"UsagePlans"</code>.
  </p>
  
  @param features
  A list of features supported for the account. When usage plans are enabled, the features list will include
  an entry of <code>"UsagePlans"</code>.