'TMP006_CFG_8SAMPLE' was not declared in this scope

uint8_t sensor1 = 0x40; // I2C address of TMP006, can be 0x40-0x47
uint16_t samples = TMP006_CFG_8SAMPLE; // # of samples per reading, can be 1/2/4/8/16
void setup()
{
  Serial.begin(9600);
  Serial.println("TMP006 Example");

  config_TMP006(sensor1, samples);
}
void loop()
{
  float object_temp = readObjTempC(sensor1);
  Serial.print("Object Temperature: ");
  Serial.print(object_temp); Serial.println("*C");

  float sensor_temp = readDieTempC(sensor1);
  Serial.print("Sensor Temperature: ");
  Serial.print(sensor_temp); Serial.println("*C");

  delay(2000); // delay 1 second for every 4 samples per reading
}