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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _compile_varchar_mysql(element, compiler, **kw):
 """MySQL hack to avoid the "VARCHAR requires a length" error."""

    if not element.length or element.length == 'max':
        return "TEXT"
    else:
        return compiler.visit_VARCHAR(element, **kw)