pub unsafe extern "C" fn poppler_structure_element_get_column_widths(
poppler_structure_element: *mut PopplerStructureElement,
n_values: *mut c_uint,
) -> *mut c_double
pub unsafe extern "C" fn poppler_structure_element_get_column_widths(
poppler_structure_element: *mut PopplerStructureElement,
n_values: *mut c_uint,
) -> *mut c_double