code: public BatchModifyClusterSnapshotsRequest withSnapshotIdentifierList(String... snapshotIdentifierList) {
          if (this.snapshotIdentifierList == null) {
              setSnapshotIdentifierList(new com.amazonaws.internal.SdkInternalList<String>(snapshotIdentifierList.length));
          }
          for (String ele : snapshotIdentifierList) {
              this.snapshotIdentifierList.add(ele);
          }
          return this;
      }
docs: <p>
  A list of snapshot identifiers you want to modify.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSnapshotIdentifierList(java.util.Collection)} or
  {@link #withSnapshotIdentifierList(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param snapshotIdentifierList
  A list of snapshot identifiers you want to modify.
  @return Returns a reference to this object so that method calls can be chained together.