code: def convert_key_value_to_hash(data)
        return case data
          when Hash then {data[:key] => data[:value]}
          when Array then
            data.inject({}) do |result, item|
              result[item[:key]] = item[:value]
              result
            end
        end
      end
docs: Converts an array containing hashes or a hash with ':key' and ':value'
   keys only into a key -> value hash.