code: public StreamRecord withKeys(java.util.Map<String, AttributeValue> keys) {
          setKeys(keys);
          return this;
      }
docs: <p>
  The primary key attribute(s) for the DynamoDB item that was modified.
  </p>
  
  @param keys
  The primary key attribute(s) for the DynamoDB item that was modified.
  @return Returns a reference to this object so that method calls can be chained together.