code: public void setReplacementTags(java.util.Collection<MessageTag> replacementTags) {
          if (replacementTags == null) {
              this.replacementTags = null;
              return;
          }
  
          this.replacementTags = new com.amazonaws.internal.SdkInternalList<MessageTag>(replacementTags);
      }
docs: <p>
  A list of tags, in the form of name/value pairs, to apply to an email that you send using
  <code>SendBulkTemplatedEmail</code>. Tags correspond to characteristics of the email that you define, so that you
  can publish email sending events.
  </p>
  
  @param replacementTags
  A list of tags, in the form of name/value pairs, to apply to an email that you send using
  <code>SendBulkTemplatedEmail</code>. Tags correspond to characteristics of the email that you define, so
  that you can publish email sending events.