ENH: Improve the annotations in `np.core.numerictypes`
ENH: Improve the annotations in `np.core.numerictypes`

jakirkham/numpy,pdebuyl/numpy,mhvk/numpy,simongibbons/numpy,numpy/numpy,rgommers/numpy,endolith/numpy,charris/numpy,rgommers/numpy,seberg/numpy,mattip/numpy,simongibbons/numpy,seberg/numpy,jakirkham/numpy,anntzer/numpy,charris/numpy,mattip/numpy,anntzer/numpy,simongibbons/numpy,rgommers/numpy,pdebuyl/numpy,mhvk/numpy,pdebuyl/numpy,jakirkham/numpy,mhvk/numpy,jakirkham/numpy,endolith/numpy,endolith/numpy,mhvk/numpy,anntzer/numpy,endolith/numpy,numpy/numpy,mattip/numpy,seberg/numpy,charris/numpy,charris/numpy,mattip/numpy,seberg/numpy,anntzer/numpy,numpy/numpy,simongibbons/numpy,simongibbons/numpy,jakirkham/numpy,rgommers/numpy,mhvk/numpy,pdebuyl/numpy,numpy/numpy