docs: public CreateUserPoolClientRequest withExplicitAuthFlows(String... explicitAuthFlows) {
          if (this.explicitAuthFlows == null) {
              setExplicitAuthFlows(new java.util.ArrayList<String>(explicitAuthFlows.length));
          }
          for (String ele : explicitAuthFlows) {
              this.explicitAuthFlows.add(ele);
          }
          return this;
      }