Simplified isType() and typeCheck() with local utilities eget() and tget().
Simplified isType() and typeCheck() with local utilities eget() and tget().

rocketnia/era-cene,rocketnia/era,rocketnia/era,era-platform/cene,rocketnia/era-cene,rocketnia/era-cene,rocketnia/era,era-platform/cene,era-platform/cene