any type name                               return name for any's type

any cvlit any                               make object be literal

any cvx any                                 make object be executable

any xcheck bool                             test executable attribute

array | file | string executeonly           reduce access to execute-only
           array | file | string

array | dict | file | string noaccess       disallow any access
           array | dict | file | string

array | dict | file | string readonly       reduce access to readonly
           array | dict | file | string

array | dict | file | string rcheck bool    test read access

array | dict | file | string wcheck bool    test write access

num | string cvi int                        convert to integer

string cvn name                             convert to name

num | string cvr real                       convert to real

num radix string cvrs substring             convert to string with radix

any string cvs substring                    convert to string