Imports
- github.com/elastic/beats/v7/libbeat/common
- github.com/elastic/beats/v7/libbeat/common/schema
- github.com/elastic/beats/v7/libbeat/common/schema/mapstrstr
- github.com/elastic/beats/v7/metricbeat/mb
- github.com/elastic/beats/v7/metricbeat/module/postgresql
- github.com/pkg/errors