Fix: Add DocBlock

[localheinz]

This PR

• adds a DocBlock

Follows #7.

[codecov]

Codecov Report

Merging #11 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             master    #11   +/-   ##
=======================================
  Coverage       100%   100%           
  Complexity       62     62           
=======================================
  Files             8      8           
  Lines           112    112           
=======================================
  Hits            112    112

Impacted Files	Coverage Δ	Complexity Δ
src/FakeVariables.php	100% <ø> (ø)	19 <0> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 32191e2...65ad293. Read the comment docs.