public Request<ModifyCacheSubnetGroupRequest> marshall(
      ModifyCacheSubnetGroupRequest modifyCacheSubnetGroupRequest) {

    if (modifyCacheSubnetGroupRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<ModifyCacheSubnetGroupRequest> request =
        new DefaultRequest<ModifyCacheSubnetGroupRequest>(
            modifyCacheSubnetGroupRequest, "AmazonElastiCache");
    request.addParameter("Action", "ModifyCacheSubnetGroup");
    request.addParameter("Version", "2015-02-02");
    request.setHttpMethod(HttpMethodName.POST);

    if (modifyCacheSubnetGroupRequest.getCacheSubnetGroupName() != null) {
      request.addParameter(
          "CacheSubnetGroupName",
          StringUtils.fromString(modifyCacheSubnetGroupRequest.getCacheSubnetGroupName()));
    }

    if (modifyCacheSubnetGroupRequest.getCacheSubnetGroupDescription() != null) {
      request.addParameter(
          "CacheSubnetGroupDescription",
          StringUtils.fromString(modifyCacheSubnetGroupRequest.getCacheSubnetGroupDescription()));
    }

    com.amazonaws.internal.SdkInternalList<String> subnetIdsList =
        (com.amazonaws.internal.SdkInternalList<String>)
            modifyCacheSubnetGroupRequest.getSubnetIds();
    if (!subnetIdsList.isEmpty() || !subnetIdsList.isAutoConstruct()) {
      int subnetIdsListIndex = 1;

      for (String subnetIdsListValue : subnetIdsList) {
        if (subnetIdsListValue != null) {
          request.addParameter(
              "SubnetIds.SubnetIdentifier." + subnetIdsListIndex,
              StringUtils.fromString(subnetIdsListValue));
        }
        subnetIdsListIndex++;
      }
    }

    return request;
  }
  @Override
  public boolean equals(Object obj) {
    if (this == obj) return true;
    if (obj == null) return false;

    if (obj instanceof ModifyCacheSubnetGroupRequest == false) return false;
    ModifyCacheSubnetGroupRequest other = (ModifyCacheSubnetGroupRequest) obj;

    if (other.getCacheSubnetGroupName() == null ^ this.getCacheSubnetGroupName() == null)
      return false;
    if (other.getCacheSubnetGroupName() != null
        && other.getCacheSubnetGroupName().equals(this.getCacheSubnetGroupName()) == false)
      return false;
    if (other.getCacheSubnetGroupDescription() == null
        ^ this.getCacheSubnetGroupDescription() == null) return false;
    if (other.getCacheSubnetGroupDescription() != null
        && other.getCacheSubnetGroupDescription().equals(this.getCacheSubnetGroupDescription())
            == false) return false;
    if (other.getSubnetIds() == null ^ this.getSubnetIds() == null) return false;
    if (other.getSubnetIds() != null && other.getSubnetIds().equals(this.getSubnetIds()) == false)
      return false;
    return true;
  }