anchor.diff:      cass_uuid_max_from_time/1,
       cass_uuid_timestamp/1,
       cass_uuid_version/1,
  +    cass_time_from_epoch/1,
       cass_date_from_epoch/1,
  -    cass_time_from_epoch/1,
       cass_date_time_to_epoch/2
   ]).
   
  
positive.code: -on_load(load_nif/0).
  
  -export([
      cass_cluster_create/0,
      cass_cluster_release/0,
      cass_log_set_level/1,
      cass_log_set_callback/1,
      cass_cluster_set_options/1,
      cass_session_new/0,
      cass_session_connect/2,
      cass_session_connect_keyspace/3,
      cass_session_close/1,
      cass_session_prepare/3,
      cass_prepared_bind/1,
      cass_statement_new/2,
      cass_statement_new/1,
      cass_statement_bind_parameters/3,
      cass_session_execute/4,
      cass_session_execute_batch/5,
      cass_session_get_metrics/1,
      cass_uuid_gen_new/0,
      cass_uuid_gen_time/0,
      cass_uuid_gen_random/0,
  
negative.code: not_loaded(Line) ->
      erlang:nif_error({not_loaded, [{module, ?MODULE}, {line, Line}]}).
  
  cass_log_set_level(_Level) ->
      ?NOT_LOADED.
  
  cass_log_set_callback(_LogPid) ->
      ?NOT_LOADED.
  
  cass_cluster_create() ->
      ?NOT_LOADED.
  
  cass_cluster_release() ->
      ?NOT_LOADED.
  
  cass_cluster_set_options(_OptionList) ->
  