get https://api.lumenpath.com/api/meta/sensor/////:namespace/
Get all metadata in a namespace
Get all metadata in namespace associated with a sensor.
curl --user "application_id:application_secret" https://api.lumenpath.com/api/meta/sensor/<application_id>/A1C3DC52-5372-42E8-B495-39F50EED5D7E/1/1/messages/