code: public AVQuery<T> whereEndsWith(String key, String suffix) {
      conditions.whereEndsWith(key, suffix);
      return this;
    }
docs: Add a constraint for finding string values that end with a provided string. This will be slow
  for large datasets.
  
  @param key The key that the string to match is stored in.
  @param suffix The substring that the value must end with.
  @return Returns the query, so you can chain this call.