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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 bool_from_exists_clause(session: Session, exists_clause: Exists) -> bool: """ Database dialects are not consistent in how ``EXISTS`` clauses can be converted to a boolean answer. This function manages the inconsistencies. See: - https://bitbucket.org/zzzeek/sqlalchemy/issues/3212/misleading-documentation-for-queryexists - http://docs.sqlalchemy.org/en/latest/orm/query.html#sqlalchemy.orm.query.Query.exists Specifically, we want this: *SQL Server* .. code-block:: sql *Others, including MySQL* .. code-block:: sql """
  # noqa
    if session.get_bind().dialect.name == SqlaDialectName.MSSQL:
        # SQL Server
        result = session.query(literal(True)).filter(exists_clause).scalar()
    else:
        # MySQL, etc.
        result = session.query(exists_clause).scalar()
    return bool(result)