async def drop_tables(conn: SAConnection) -> None:
for table in reversed(tables):
try:
await conn.execute(DropTable(table))
except psycopg2.ProgrammingError:
pass
for enum in enums:
try:
await conn.execute(DropEnumType(enum))
except psycopg2.ProgrammingError:
pass
async def drop_async(self, bind=None, checkfirst=True):
if not checkfirst or \
await bind.dialect.has_type(bind, self.name,
schema=self.schema):
await bind.status(DropEnumType(self))