=
"Class hierarchy: :class:`freestyle.types.StrokeShader` > :class:`BackboneStretcherShader`\n"
"\n"
"[Geometry shader]\n"
"\n"
".. method:: __init__(amount=2.0)\n"
"\n"
" Builds a BackboneStretcherShader object.\n"
"\n"
" :arg amount: The stretching amount value.\n"
" :type amount: float\n"
"\n"
".. method:: shade(stroke)\n"
"\n"
" Stretches the stroke at its two extremities and following the\n"
" respective directions: v(1)v(0) and v(n-1)v(n).\n"
"\n"
" :arg stroke: A Stroke object.\n"
" :type stroke: :class:`freestyle.types.Stroke`\n"