1. A computer-implemented method comprising: receiving a message comprising data characterizing values; parsing the message to obtain the values as a first data type, the first data type being different than a second data type that is associated with a first value, the first value being one of the values, and the second data type indicated in the message as being a data type of the first value; and generating an instance of the first value being of the second data type, the generating in response to a request for the first value.