**Use case**

Like `date_time_input_format = 'best_effort'` but with disambiguation to American mm/dd/yyyy style.

#pragma once
#include <Core/Names.h>
#include <base/types.h>
namespace DB
{
/**
  * Various tweaks for input/output formats. Text serialization/deserialization
  * of data types also depend on some of these settings. It is different from