pkg container/heap, func Push(Interface, interface{})
pkg container/heap, func Remove(Interface, int) interface{}
pkg container/heap, type Interface interface { Len, Less, Pop, Push, Swap }
pkg container/heap, type Interface interface, Len() int
pkg container/heap, type Interface interface, Less(int, int) bool
pkg container/heap, type Interface interface, Pop() interface{}
pkg container/heap, type Interface interface, Push(interface{})

$breakpoints: $grid-breakpoints) {\n  $min: map-get($breakpoints, $name);\n  @return if($min != 0, $min, null);\n}\n\n// Maximum breakpoint width. Null for the largest (last) breakpoint.\n// The maximum value is calculated as the minimum of the next one less 0.02px\n// to work around the limitations of `min-` and `max-` prefixes and viewports with fractional widths.\n// See https://www.w3.org/TR/mediaqueries-4/#mq-min-max\n// Uses 0.02px rather than 0.01px to work around a current rounding bug in Safari.\n//...