Fix anonymous function definitions

[reiniscirpons]

This PR fixes an issue with the get and test functions. When defining an anonymous nullary function, the proper syntax is {} -> foo; to indicate that no arguments are passed.

[fingolfin]

If you are interested in working on or with this package, let me know and I can also give you write access. Right now it is unmaintained :/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 42.98%. Comparing base (e6dcbc2) to head (3385f19).

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #41   +/-   ##
=======================================
  Coverage   42.98%   42.98%           
=======================================
  Files           2        2           
  Lines         449      449           
  Branches       69       69           
=======================================
  Hits          193      193           
  Misses        234      234           
  Partials       22       22           

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[reiniscirpons]

Hi Max, sadly not a user of ZeroMQInterface myself. This issue just came up when I was working on the tree-sitter grammar yesterday and it was flagged up by the automated corpus tests for the grammar (i.e. these files were not parsing), so I felt I might as well fix it.

[olexandr-konovalov]

Thanks - I'm also approving. @fingolfin please feel free to make a release. I have some interest in this package since it's a dependency of Jupyter Kernel, but at the moment I am just happy that it works.