def partition_pairs(neurites, neurite_type=NeuriteType.all):
return map(_bifurcationfunc.partition_pair,<EOL>iter_sections(neurites,<EOL>iterator_type=Tree.ibifurcation_point,<EOL>neurite_filter=is_type(neurite_type)))<EOL>
Partition pairs at bifurcation points of a collection of neurites.
    Partition pait is defined as the number of bifurcations at the two
    daughters of the bifurcating section