asyncpg: Awaiting multiple `execute` within a transaction seems to block forever

I’m trying to execute a couple of sql queries with arguments, in a context of a transaction.

I used this code:

 async def execute_many_in_transaction(self, queries_and_args):
    pool = await get_pool() # returns a pool of clients
    async with pool.acquire() as connection:
        async with connection.transaction():
            for query, args in queries_and_args:
                await connection.execute(
                    query, *args
                )

When I call it with a list with one tuple [("SQL STATEMENT", [arg1, arg2])] all is good.

The moment I try to execute more than one, it just hangs there forever. For example:

[
    ("SQL STATEMENT 1", [arg1, arg2]),
    ("SQL STATEMENT 2", [arg1, arg3]),
]

I know that there is execute_many method, but that only seems to work on the same sql statement with multiple lists of arguments.

Is there something I’m misunderstanding ?

Thanks !