{"head":"40ddb669466794740d3cd4b66b252a38a3b32ed1","size":1,"push_id":44147707,"shas":[["40ddb669466794740d3cd4b66b252a38a3b32ed1","51c6c3e3d39200425f677d4cc70d659b60e1694f@gmail.com","Added text, code examples and screenshots for chapter 4: Packing Widgets.","Horace Abenga"]],"ref":"refs/heads/master"}