Nonfarm payrolls increased by 130,000 for January, above the Dow Jones consensus estimate for 55,000. The unemployment rate edged lower to 4.3%. A more encompassing measure slipped to 8%, down 0.4 ...

Then, you can import classes from this library in your core module or any other submodules that depend on core. You might be depending on this for any number of reasons, but platform-independent code ...