expect.
Parameters
target
MatcherTarget
Returns
void
Remarks
The vitest and jest presets call this, so a suite that loads@tappify/extension-sdk/testing/vitest or .../testing/jest as a setup file
needs nothing else. Call it yourself only in a suite that does not use a preset,
and once — registering twice replaces the same four names. It adds no types of
its own, so a suite without a preset declares the four on the runner’s Matchers
interface itself.