This is a democracy proposal to open a bi-directional HRMP channel between Statemint and [Composable](https://www.composable.finance/). Posted as a discussion [here](https://polkadot.subsquare.io/post/21). Composable's parachain ID is 2019 which is used in HRMP calls for channel opening.

This channel will be used to obtain native stablecoins in the Composable ecosystem.

The batch_all contains:

A force_transfer of 20 DOT from the Treasury to Statemint sovereign account.
A force_open_hrmp_channel from Composable to Statemint.
A force_open_hrmp_channel from Statemint to Composable.

Send a batch of dispatch calls and atomically execute them.
The whole transaction will rollback and fail if any of the calls failed.

May be called from any origin except `None`.

- `calls`: The calls to be dispatched from the same origin. The number of call must not
  exceed the constant: `batched_calls_limit` (available in constant metadata).

If origin is root then the calls are dispatched without checking origin filter. (This
includes bypassing `frame_system::Config::BaseCallFilter`).

# <weight>
- Complexity: O(C) where C is the number of calls to be batched.
# </weight>

: This proposal outlines a plan to open a bi-directional HRMP channel between Statemint and Composable to enable the transfer of native stablecoins. The channel will be opened by a force transfer of 20 DOT from the Treasury to Statemint and two "force open hrmp channel" calls, one from Composable to Statemint and one from Statemint to Composable.

#126 HRMP Channel Opening: Composable <> Statemint