pub unsafe extern "C" fn gtk_source_style_scheme_manager_get_scheme(
manager: *mut GtkSourceStyleSchemeManager,
scheme_id: *const c_char,
) -> *mut GtkSourceStyleScheme
pub unsafe extern "C" fn gtk_source_style_scheme_manager_get_scheme(
manager: *mut GtkSourceStyleSchemeManager,
scheme_id: *const c_char,
) -> *mut GtkSourceStyleScheme