pub unsafe extern "C" fn gtk_text_buffer_get_iter_at_line(
buffer: *mut GtkTextBuffer,
iter: *mut GtkTextIter,
line_number: c_int,
) -> gboolean
pub unsafe extern "C" fn gtk_text_buffer_get_iter_at_line(
buffer: *mut GtkTextBuffer,
iter: *mut GtkTextIter,
line_number: c_int,
) -> gboolean