public Builder clearStartCoordinates() {
      bitField0_ = (bitField0_ & ~0x00000002);
      startCoordinates_ = null;
      if (startCoordinatesBuilder_ != null) {
        startCoordinatesBuilder_.dispose();
        startCoordinatesBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Required. The latitude and longitude of the location to calculate the
commute time from.
</pre>

<code>.google.type.LatLng start_coordinates = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/CommuteFilter.java