@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + CONSTRAINT_TYPE_FIELD_NUMBER;
    hash = (53 * hash) + constraintType_;
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Describes the different types of constraints that are applied.
</pre>

<code>.google.cloud.speech.v2.AccessMetadata.ConstraintType constraint_type = 1;</code>

@return The constraintType.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/AccessMetadata.java