Message callback

[spitsw]

No description provided.

[github-actions]

Semver Compatibility Check ❌ FAIL

     Cloning 70c21d0cc45927ea3f7d49eff41c0e9348f89c05
    Building mqi v0.3.0 (current)
       Built [  14.463s] (current)
     Parsing mqi v0.3.0 (current)
      Parsed [   0.036s] (current)
    Building mqi v0.3.0 (baseline)
       Built [  14.316s] (baseline)
     Parsing mqi v0.3.0 (baseline)
      Parsed [   0.031s] (baseline)
    Checking mqi v0.3.0 -> v0.3.0 (no change; assume minor)
     Checked [   0.423s] 196 checks: 195 pass, 1 fail, 0 warn, 49 skip

--- failure inherent_method_missing: pub method removed or renamed ---

Description:
A publicly-visible method or associated fn is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/inherent_method_missing.ron

Failed in:
  EventCallback::unregister_event_handler, previously in file /home/runner/work/mqi/mqi/target/semver-checks/git-70c21d0cc45927ea3f7d49eff41c0e9348f89c05/3eb0d7f7cc406c9cb07dc9a3c7fbce5cd2367b83/src/callback.rs:57
  MessageFormat::into_mqmd2, previously in file /home/runner/work/mqi/mqi/target/semver-checks/git-70c21d0cc45927ea3f7d49eff41c0e9348f89c05/3eb0d7f7cc406c9cb07dc9a3c7fbce5cd2367b83/src/mq_type.rs:148

     Summary semver requires new major version: 1 major and 0 minor checks failed
    Finished [  30.441s] mqi