code: public SetEndpointAttributesRequest withAttributes(java.util.Map<String, String> attributes) {
          setAttributes(attributes);
          return this;
      }
docs: <p>
  A map of the endpoint attributes. Attributes in this map include the following:
  </p>
  <ul>
  <li>
  <p>
  <code>CustomUserData</code> – arbitrary user data to associate with the endpoint. Amazon SNS does not use this
  data. The data must be in UTF-8 format and less than 2KB.
  </p>
  </li>
  <li>
  <p>
  <code>Enabled</code> – flag that enables/disables delivery to the endpoint. Amazon SNS will set this to false
  when a notification service indicates to Amazon SNS that the endpoint is invalid. Users can set it back to true,
  typically after updating Token.
  </p>
  </li>
  <li>
  <p>
  <code>Token</code> – device token, also referred to as a registration id, for an app and mobile device. This is
  returned from the notification service when an app and mobile device are registered with the notification
  service.
  </p>
  </li>
  </ul>
  
  @param attributes
  A map of the endpoint attributes. Attributes in this map include the following:</p>
  <ul>
  <li>
  <p>
  <code>CustomUserData</code> – arbitrary user data to associate with the endpoint. Amazon SNS does not use
  this data. The data must be in UTF-8 format and less than 2KB.
  </p>
  </li>
  <li>
  <p>
  <code>Enabled</code> – flag that enables/disables delivery to the endpoint. Amazon SNS will set this to
  false when a notification service indicates to Amazon SNS that the endpoint is invalid. Users can set it
  back to true, typically after updating Token.
  </p>
  </li>
  <li>
  <p>
  <code>Token</code> – device token, also referred to as a registration id, for an app and mobile device.
  This is returned from the notification service when an app and mobile device are registered with the
  notification service.
  </p>
  </li>
  @return Returns a reference to this object so that method calls can be chained together.