bool env_assignment_is_valid(const char *e);
bool strv_env_is_valid(char **e);
-char **strv_env_clean(char **l);
-char **strv_env_clean_log(char **e, const char *message);
+#define strv_env_clean(l) strv_env_clean_with_callback(l, NULL, NULL)
+char **strv_env_clean_with_callback(char **l, void (*invalid_callback)(const char *p, void *userdata), void *userdata);
bool strv_env_name_or_assignment_is_valid(char **l);
char **strv_env_set(char **x, const char *p); /* New copy ... */
char **strv_env_unset(char **l, const char *p); /* In place ... */
+char **strv_env_unset_many(char **l, ...) _sentinel_;
-char *strv_env_get_n(char **l, const char *name, size_t k);
-char *strv_env_get(char **x, const char *n);
+char *strv_env_get_n(char **l, const char *name, size_t k) _pure_;
+char *strv_env_get(char **x, const char *n) _pure_;