code: @Nullable
      public AuditLogChange getChangeByKey(final AuditLogKey key)
      {
          return key == null ? null : getChangeByKey(key.getKey());
      }
docs: Shortcut to <code>{@link #getChanges() getChanges()}.get(key)</code> lookup!
  <br>This lookup is case-insensitive!
  
  @param  key
  The {@link net.dv8tion.jda.core.audit.AuditLogKey AuditLogKey} to look for
  
  @return Possibly-null value corresponding to the specified key