api.go.tmpl: Add Format method to classes
api.go.tmpl: Add Format method to classes

google/agi,Qining/gapid,google/agi,Qining/gapid,pmuetschard/gapid,Qining/gapid,Qining/gapid,pmuetschard/gapid,pmuetschard/gapid,pmuetschard/gapid,google/gapid,Qining/gapid,google/gapid,pmuetschard/gapid,google/agi,Qining/gapid,pmuetschard/gapid,pmuetschard/gapid,google/agi,Qining/gapid,google/gapid,google/gapid,google/gapid,google/gapid,pmuetschard/gapid,google/gapid,google/agi,Qining/gapid,google/agi,google/gapid,google/agi,google/agi