The `goog.graphics.paths` Namespace

`.createArrow(a, b, aHead, bHead)`

Defines an arrow.

a {goog.math.Coordinate}: Point A.
b {goog.math.Coordinate}: Point B.
aHead {?number}: The size of the arrow head at point A. 0 omits the head.
bHead {?number}: The size of the arrow head at point B. 0 omits the head.
returns {!goog.graphics.Path}: The path.

`.createRegularNGon(center, vertex, n)`

Defines a regular n-gon by specifing the center, a vertex, and the total number of vertices.

center {goog.math.Coordinate}: The center point.
vertex {goog.math.Coordinate}: The vertex, which implicitly defines a radius as well.
n {number}: The number of vertices.
returns {!goog.graphics.Path}: The path.