* Fix: Circular dependencies of internal files
* Change: dt.date for Date and dt.datetime for DateTime
* Use NewType if available
* FIX: Wrong version test
* Remove: Date and DateTime types due to error
* Change to HomeAssistantType
* General Improvement of Typing
* Improve typing config_validation
* Improve typing script
* General Typing Improvements
* Improve NewType check
* Improve typing db_migrator
* Improve util/__init__ typing
* Improve helpers/location typing
* Regroup imports and remove pylint: disable=ungrouped-imports
* General typing improvements
* Fix deprecated(moved) import
* Add util/dt typing
* Green on mypy util/dt
* Fix some errors
* First part of yping util/yaml
* Add more typing to util/yaml
"unix" timestamp is number of seconds since Jan 1, 1970 UTC.
This allows scripts that use templates to generate time
deltas in seconds if desired from state attributes such
as last_updated.
Some examples:
timestamp now is
{{ as_timestamp(now) }}
timstamp of last change is
{{ as_timestamp(states.binary_sensor.garage_door.last_changed) }}
seconds since last change is
{{ as_timestamp(now) - as_timestamp(states.binary_sensor.garage_door.last_changed) }}