Set operations

difference(a, b[, grid_size])	Return the part of geometry A that does not intersect with geometry B.
intersection(a, b[, grid_size])	Return the geometry that is shared between input geometries.
intersection_all(geometries[, axis])	Return the intersection of multiple geometries.
symmetric_difference(a, b[, grid_size])	Return the geometry with the portions of input geometries that do not intersect.
symmetric_difference_all(geometries[, axis])	Return the symmetric difference of multiple geometries.
unary_union(geometries[, grid_size, axis])	Return the union of multiple geometries.
union(a, b[, grid_size])	Merge geometries into one.
union_all(geometries[, grid_size, axis])	Return the union of multiple geometries.
coverage_union(a, b, **kwargs)	Merge multiple polygons into one.
coverage_union_all(geometries[, axis])	Return the union of multiple polygons of a geometry collection.
disjoint_subset_union(a, b, **kwargs)	Merge multiple polygons into one using algorithm optimised for subsets.
disjoint_subset_union_all(geometries[, axis])	Return the union of multiple polygons.