def __init__(self, verts, sizes=None, closed=True, **kwargs):
Collection.__init__(self, **kwargs)<EOL>self._sizes = sizes<EOL>self.set_verts(verts, closed)<EOL>
*verts* is a sequence of ( *verts0*, *verts1*, ...) where
*verts_i* is a sequence of *xy* tuples of vertices, or an
equivalent :mod:`numpy` array of shape (*nv*, 2).

*sizes* is *None* (default) or a sequence of floats that
scale the corresponding *verts_i*.  The scaling is applied
before the Artist master transform; if the latter is an identity
transform, then the overall scaling is such that if
*verts_i* specify a unit square, then *sizes_i* is the area
of that square in points^2.
If len(*sizes*) < *nv*, the additional values will be
taken cyclically from the array.

*closed*, when *True*, will explicitly close the polygon.

%(Collection)s