osbng.grids.BNG_BOUNDS# osbng.grids.BNG_BOUNDS: tuple[int, int, int, int] = (0, 0, 700000, 1300000)# BNG index system bounding box. Expressed as (xmin, ymin, xmax, ymax) using easting and northing coordinates. Represents the valid extent for BNGReference and grid generation. Type: tuple[int, int, int, int]
