limit parameter in search_people method is documented but not implemented

Although the limit parameter is documented in the method signature of search_people, it does not appear to be implemented in the code. The method's docstring specifies that the limit parameter should control the maximum length of the returned list (with a default value of -1 for no limit), but there is no reference or usage of this parameter in the actual code. It would be helpful if this parameter were properly implemented to restrict the number of results returned, as documented.