TypeScript Error "Not all code paths return a value."

[major-mayer]

Describe the bug
When running npm run check on my project that uses svelte-material-ui, the following error appears:

/path/to/my/project/node_modules/@smui/common/src/internal/dispatch.ts:1:17
Error: Not all code paths return a value. 
export function dispatch<T extends any = any>(
  element: Element,

To Reproduce
Steps to reproduce the behavior:

1. Install a component that needs stuff from @smui/common
2. Run npm run check

Expected behavior
No error should appear.

Screenshots
the error from above appears.

Desktop (please complete the following information):

• OS: Linux
• Browser Irrelevant since no error (yet) on runtime
• Version Irrelavant

Additional context
Add any other context about the problem here.

[Cobrand]

You also need compilerOptions.noImplicitReturns to be true in tsconfig.json.

Can be fixed by adding return undefined after line 29 of dispatch.ts, but I'm not sure whether or not this is the right fix.

[major-mayer]

I created a small PR to fix this. Let's see if it gets accepted

[DetachHead]

while it's probably a good idea to fix this, after some investigating i noticed that this is caused by typesVersions in the @smui/common package incorrectly pointing to the source code.

ideally your code should not be typechecking the function implementations in this package. see #532

[hperrin]

This is now fixed here: c551452#diff-54062c270ea651b890f69db1e1c4243b2c9033075870d648ab407cca159b67b7