code: public ProvisioningArtifactPreferences withStackSetRegions(String... stackSetRegions) {
          if (this.stackSetRegions == null) {
              setStackSetRegions(new java.util.ArrayList<String>(stackSetRegions.length));
          }
          for (String ele : stackSetRegions) {
              this.stackSetRegions.add(ele);
          }
          return this;
      }
docs: <p>
  One or more AWS Regions where stack instances are deployed from the stack set. These regions can be scoped in
  <code>ProvisioningPreferences$StackSetRegions</code> and
  <code>UpdateProvisioningPreferences$StackSetRegions</code>.
  </p>
  <p>
  Applicable only to a <code>CFN_STACKSET</code> provisioned product type.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setStackSetRegions(java.util.Collection)} or {@link #withStackSetRegions(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param stackSetRegions
  One or more AWS Regions where stack instances are deployed from the stack set. These regions can be scoped
  in <code>ProvisioningPreferences$StackSetRegions</code> and
  <code>UpdateProvisioningPreferences$StackSetRegions</code>.</p>
  <p>
  Applicable only to a <code>CFN_STACKSET</code> provisioned product type.
  @return Returns a reference to this object so that method calls can be chained together.