How to use the aws-embedded-metrics.Unit.Count function in aws-embedded-metrics

'#title': 'title',
      '#value': 'value'
    },
    ExpressionAttributeValues: {
      ':title': title,
      ':value': value
    },
    ReturnValues: 'NONE'
  }

  await dynamoDocClient()
    .update(params)
    .promise()

  const metrics = createMetricsLogger()
  metrics.putMetric('EntryWords', title.trim().split(/s/).length, Unit.Count)
  await metrics.flush()

  return {
    entId,
    title,
    value
  }
}

title,
        value
      }
    },

    ReturnValues: 'ALL_NEW'
  }
  const {
    Attributes: { entries }
  } = await dynamoDocClient()
    .update(params)
    .promise()

  const metrics = createMetricsLogger()
  metrics.putMetric('NumEntries', Object.keys(entries).length, Unit.Count)
  metrics.putMetric('EntryWords', title.trim().split(/s/).length, Unit.Count)
  await metrics.flush()

  return {
    entId,
    title,
    value
  }
}