Using https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-logout Depends on https://github.com/matrix-org/matrix-rust-sdk/issues/115
Using https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-logout
Depends on matrix-org/matrix-rust-sdk#115