Template processor error when using the name of the metric in the template

[pedrotambo]

Relevant telegraf.conf:

[[processors.template]]
  tag = "measurement"
  template = '{{ .Name }}'

System info:

Docker image telegraf:1.14

Steps to reproduce:

1. Add the configuration in telegraf.
2. Run the container.

Expected behavior:

Metrics are sent with a new tag called "measurement" and the value is the name of the metric.

Actual behavior:

The metrics are sent wihtout the new tag.

Additional info:

Error from the logs:
telegraf-forwarder_1 | 2020-03-30T22:40:20Z E! [processors.template] failed to execute template: template: configured_template:1:3: executing "configured_template" at <.Name>: can't evaluate field Name in type *template.TemplateMetric