Documentation for method
interval assembled from the following types:
method interval(Supply: , = 0, : = --> Supply)
Creates a supply that emits a value every
$interval seconds, starting
$delay seconds from the call. The emitted value is an integer, starting from 0, and is incremented by one for each value emitted.
Implementations may treat too-small values as lowest resolution they support, possibly warning in such situations; e.g. treating
0.001. For 6.d language version, the minimal value specified is