@Override
  public boolean equals(final Object other) {
    if (other instanceof VertxInvocationHandler) {
      final VertxInvocationHandler otherHandler = (VertxInvocationHandler) other;
      return this.target.equals(otherHandler.target);
    }

    return false;
  }
Checks if method must return vertx {@code Future}.

@param method invoked method
@return true if method must return Future, false if not
vertx/feign-vertx/src/main/java/feign/VertxInvocationHandler.java