dialyzer passes

apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex

@@ -57,7 +57,7 @@ defmodule BlockScoutWeb.ChainController do
     transaction_stats = TransactionStats.by_date_range(stats_scale.earliest, stats_scale.latest)
 
     # Need datapoint for legend if none currently available.
-    if Enum.empty?(transaction_stats) == 0 do
+    if Enum.empty?(transaction_stats) do
       [%{number_of_transactions: 0}]
     else
       transaction_stats

apps/explorer/lib/explorer/chain/transaction/history/transaction_stats.ex

@@ -21,7 +21,7 @@ defmodule Explorer.Chain.Transaction.History.TransactionStats do
   """
   @type t :: %__MODULE__{
           date: Date.t(),
-          number_of_transactions: Integer.t()
+          number_of_transactions: integer()
         }
 
   @spec by_date_range(Date.t(), Date.t()) :: [__MODULE__]