code: function(requestId, fieldNames) {
  		return protocol.implodeMessage(requestId,
  			metadataMethods.GET_SCHEMA,
  			protocol.implodeDataArray(fieldNames));
  	}
docs: Encodes a successful get schema reply.
  
  @param {String} requestId the originating request id
  @param {Array} fieldNames an array of field name strings
  @return {String} the encoded message
  @private