Type of the base draw function: draw a tree into some output format.
A function of the type:
{ (self: Tree<A>): Out } Copy
{ (self: Tree<A>): Out }
Underlying type of the tree being printed.
Output type of drawing function. Usually multiline string or * array of string lines for terminal output.
Type of the base draw function: draw a tree into some output format.
A function of the type: