def load_config(file)
      unless File.exist?(file)
        raise FalkorLib::Error, "Unable to find the YAML file '#{file}'"
      end
      loaded = YAML.load_file(file)
      unless loaded.is_a?(Hash)
        raise FalkorLib::Error, "Corrupted or invalid YAML file '#{file}'"
      end
      loaded
    end
def load_config(file)
      unless File.exist?(file)
        raise FalkorLib::Error, "Unable to find the YAML file '#{file}'"
      end
      loaded = YAML.load_file(file)
      unless loaded.is_a?(Hash)
        raise FalkorLib::Error, "Corrupted or invalid YAML file '#{file}'"
      end
      loaded
    end
select_multiple_from

 YAML File loading/store 

 Return the yaml content as a Hash object