charts.extent
The minimum and maximum of a series as [min, max], skipping gaps (null), or null when there is no value.
extent in PythonTagged domain
3 capabilities
charts.scale
Map data values onto screen positions and back: linear, log, time, band and point scales, and nice domains.
A group of 7:
linear_scale, invert_linear, nice_domain, log_scale, time_scale, band_scale, point_scale
net.hostname-validate
Check a host name against RFC 1123 and RFC 952 label rules and length limits, and normalise it.
validate_hostname in Python