The key name of the tag. You can specify a value that is 1 to 128 Unicode characters in length and cannot be prefixed with aws:. Valid characters are Unicode letters, digits, white space, and any of the following symbols: _ . : / = + - @
The value for the tag. You can specify a value that is 0 to 256 Unicode characters in length and cannot be prefixed with aws:. Valid characters are Unicode letters, digits, white space, and any of the following symbols: _ . : / = + - @