Fix for dialyzer

apps/explorer/lib/explorer/chain.ex

@@ -1745,7 +1745,7 @@ defmodule Explorer.Chain do
       `:required`, and the `t:Explorer.Chain.Transaction.t/0` has no associated record for that association, then the
       `t:Explorer.Chain.Transaction.t/0` will not be included in the page `entries`.
   """
-  @spec hashes_to_transactions([Hash.Full.t()], [necessity_by_association_option]) :: [Transaction.t()] | []
+  @spec hashes_to_transactions([Hash.Full.t()], [necessity_by_association_option | api?]) :: [Transaction.t()] | []
   def hashes_to_transactions(hashes, options \\ []) when is_list(hashes) and is_list(options) do
     necessity_by_association = Keyword.get(options, :necessity_by_association, %{})