code: func CSROrKeyExist(csrDir, name string) bool {
  	csrPath := pathForCSR(csrDir, name)
  	keyPath := pathForKey(csrDir, name)
  
  	_, csrErr := os.Stat(csrPath)
  	_, keyErr := os.Stat(keyPath)
  
  	return !(os.IsNotExist(csrErr) && os.IsNotExist(keyErr))
  }
docs: // CSROrKeyExist returns true if one of the CSR or key exists