All three options below produce the same output regardless of which attributes are set
Option 1 Uses "," (or) in ifndef to check for two attributes
Loads the initial setup, including Elasticsearch template, {kib} index pattern, and {kib} dashboards (when available).
Option 2 Nested statements
Loads the initial setup, including Elasticsearch template, {kib} index pattern, and {kib} dashboards (when available).
Option 3* Weird but fun. Using attributes allows a default to be overwritten
Loads the initial setup, including Elasticsearch template, {kib} index pattern, and {kib} dashboards (when available).