How to use the ddlparse.ddlparse.DdlParse.NAME_CASE function in ddlparse

""",
        "bq_ddl": {
            DdlParse.NAME_CASE.original:
                """\
                #standardSQL
                CREATE TABLE `project.dataset.Test_Table`
                (
                  Col_01 STRING NOT NULL OPTIONS (description = "Single Quote"),
                  Col_02 STRING NOT NULL OPTIONS (description = "Double Quote"),
                  Col_03 ARRAY OPTIONS (description = "in \\"Quote\\""),
                  Col_04 ARRAY>> OPTIONS (description = "in 'Quote'"),
                  Col_05 ARRAY>>>> OPTIONS (description = "コメント is full-width(Japanese) character"),
                  Col_06 STRING OPTIONS (description = "Comma, strings, ,"),
                  Col_07 ARRAY
                )""",
            DdlParse.NAME_CASE.lower:
                """\
                #standardSQL
                CREATE TABLE `project.dataset.test_table`
                (
                  col_01 STRING NOT NULL OPTIONS (description = "Single Quote"),
                  col_02 STRING NOT NULL OPTIONS (description = "Double Quote"),
                  col_03 ARRAY OPTIONS (description = "in \\"Quote\\""),
                  col_04 ARRAY>> OPTIONS (description = "in 'Quote'"),
                  col_05 ARRAY>>>> OPTIONS (description = "コメント is full-width(Japanese) character"),
                  col_06 STRING OPTIONS (description = "Comma, strings, ,"),
                  col_07 ARRAY
                )""",
            DdlParse.NAME_CASE.upper:
                """\
                #standardSQL
                CREATE TABLE `project.dataset.TEST_TABLE`