How to filter by tags for New Relic importing?

[amauch-adobe]

How can you filter the import of synthetic monitors from new relic by their Tags?

I have tried different ways to attempt this and either I get all of the monitors being imported or zero (0) monitors being imported.

I have tried it in these various ways, please note <tag key>, <tag value> are replaced with a string:

terraformer import newrelic -r synthetics --api-key="$NEW_RELIC_API_KEY" --account-id="$NEW_RELIC_ACCOUNT_ID" --filter=tags=<tag_key>:<tag value>

terraformer import newrelic -r synthetics --api-key="$NEW_RELIC_API_KEY" --account-id="$NEW_RELIC_ACCOUNT_ID" -f="Name=tags.<tag_key>=<tag value>"

terraformer import newrelic -r synthetics --api-key="$NEW_RELIC_API_KEY" --account-id="$NEW_RELIC_ACCOUNT_ID" -f="Name=tags.<tag_key>:<tag value>

terraformer import newrelic -r synthetics --api-key="$NEW_RELIC_API_KEY" --account-id="$NEW_RELIC_ACCOUNT_ID" -f="Name=tags.<tag_key>.<tag value>

.... and so forth.

Any help with this would be greatly appreciated, since there doesn't seem to be much documentation anywhere other than from the '--help' usage that only shows filtering dashboards by id.