@java.lang.Override
  public java.lang.String getDvrSessionId() {
    java.lang.Object ref = dvrSessionId_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      dvrSessionId_ = s;
      return s;
    }
  }
<pre>
Required. Id of the requesting object in the following form:

1. 1 character minimum, 63 characters maximum
2. Only contains letters, digits, underscores, and hyphens
</pre>

<code>string dvr_session_id = 2 [(.google.api.field_behavior) = REQUIRED];</code>

@return The dvrSessionId.
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/CreateDvrSessionRequest.java