code: public ListEntitiesForPolicyResult withPolicyUsers(PolicyUser... policyUsers) {
          if (this.policyUsers == null) {
              setPolicyUsers(new com.amazonaws.internal.SdkInternalList<PolicyUser>(policyUsers.length));
          }
          for (PolicyUser ele : policyUsers) {
              this.policyUsers.add(ele);
          }
          return this;
      }
docs: <p>
  A list of IAM users that the policy is attached to.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setPolicyUsers(java.util.Collection)} or {@link #withPolicyUsers(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param policyUsers
  A list of IAM users that the policy is attached to.
  @return Returns a reference to this object so that method calls can be chained together.