/**
- * tal_check - set the allocation or error functions to use
+ * tal_check - sanity check a tal context and its children.
* @ctx: a tal context, or NULL.
* @errorstr: a string to prepend calls to error_fn, or NULL.
*
* This sanity-checks a tal tree (unless NDEBUG is defined, in which case
* it simply returns true). If errorstr is not null, error_fn is called
* when a problem is found, otherwise it is not.
+ *
+ * See also:
+ * tal_set_backend()
*/
bool tal_check(const tal_t *ctx, const char *errorstr);