@Override
  protected void validateRequest() {
    if (!params().containsKey("input")) {
      throw new IllegalArgumentException("Request must contain 'input'.");
    }
    if (!params().containsKey("inputtype")) {
      throw new IllegalArgumentException("Request must contain 'inputType'.");
    }
  }
Prefer results in a specified area, by specifying either a radius plus lat/lng, or two lat/lng
pairs representing the points of a rectangle.

@param locationBias The location bias for this request.
@return Returns {@code FindPlaceFromTextRequest} for call chaining.
src/main/java/com/google/maps/FindPlaceFromTextRequest.java