The Eagle file for the Electron that is provided in the electron_master files from GitHub only has one Electron Package called ELECTRONDUALROW. The description says:
Electron socket for a dual‑row header for easy prototyping, with the pins also duplicated to unpopulated through‑holes for easy soldering.
Can someone explain to me what this package is all about? I can’t visuallize how the electron would fit into this layout. Do the innermost through holes correspond to the existing pin headers that ship with the Electron? What is the “Electron Socket” and how does it fit into a dual row header?