same as OptionArrayValue
same as OptionBaseValue
same as cmdline.error.OptionMemberFnCallError
same as OptionNullable
same as OptionValueSeq
same as OptionVariant
test whether the typeT is innner argument value type
test whether the typeT is base innner argument value type
the argument type. store the value that command line's arguments input. we can get the inner value after it is initialized.
create bool argument
create T or T[] argument, which T must not bool if flag is like <name...> then the argument's innner type is T[]
create bool argument
create a argument, whose inner type is array type of T and T is not bool
The Argument Type for Cmdline
This modlue mainly has Argument Type. We can set the inner value by manly way. And if the Argument value is valid, then we can initialize it and get the inner value.