allout-show-children is an interactive compiled Lisp function in `
(allout-show-children &optional LEVEL STRICT)
If point is visible, show all direct subheadings of this heading.
Otherwise, do `allout-show-to-offshoot', and then show subheadings.
Optional LEVEL specifies how many levels below the current level
should be shown, or all levels if t. Default is 1.
Optional STRICT means don't resort to -show-to-offshoot, no matter
what. This is basically so -show-to-offshoot, which is called by
this function, can employ the pure offspring-revealing capabilities of
Returns point at end of subtree that was opened, if any. (May get a
point of non-opened subtree?)