code: public void setCustomDomains(java.util.Collection<String> customDomains) {
          if (customDomains == null) {
              this.customDomains = null;
              return;
          }
  
          this.customDomains = new java.util.ArrayList<String>(customDomains);
      }
docs: <p>
  Custom domains for a branch, part of an Amplify App.
  </p>
  
  @param customDomains
  Custom domains for a branch, part of an Amplify App.