Returns (width, height) for the given variable

def get_grid_spatial_dimensions(self, variable):
        """Returns (width, height) for the given variable"""

        data = self.open_dataset(self.service).variables[variable.variable]
        dimensions = list(data.dimensions)
        return data.shape[dimensions.index(variable.x_dimension)], data.shape[dimensions.index(variable.y_dimension)]