param method
Set a parameter value.
The parameter name must not exceed 32 characters in length and must be a
sequence of characters in: [a-z0-9-].
If value is not a String, it will be converted to one with toString.
As a string, it must be a sequence of characters in [a-zA-Z0-9/+.-].
Implementation
CryptDataBuilder param(String name, dynamic value) {
_params[name] = value == null ? value : value.toString();
return this;
}