code: public UpdateHealthCheckRequest withChildHealthChecks(String... childHealthChecks) {
          if (this.childHealthChecks == null) {
              setChildHealthChecks(new com.amazonaws.internal.SdkInternalList<String>(childHealthChecks.length));
          }
          for (String ele : childHealthChecks) {
              this.childHealthChecks.add(ele);
          }
          return this;
      }
docs: <p>
  A complex type that contains one <code>ChildHealthCheck</code> element for each health check that you want to
  associate with a <code>CALCULATED</code> health check.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setChildHealthChecks(java.util.Collection)} or {@link #withChildHealthChecks(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param childHealthChecks
  A complex type that contains one <code>ChildHealthCheck</code> element for each health check that you want
  to associate with a <code>CALCULATED</code> health check.
  @return Returns a reference to this object so that method calls can be chained together.