Optional ReadonlyallowedOptional ReadonlyallowedAn array containing the list of values allowed for the parameter.
Optional ReadonlyconstraintA string that explains a constraint when the constraint is violated. For example, without a constraint description, a parameter that has an allowed pattern of [A-Za-z0-9]+ displays the following error message when the user specifies an invalid value:
Optional ReadonlydefaultA value of the appropriate type for the template to use if no value is specified when a stack is created. If you define constraints for the parameter, you must specify a value that adheres to those constraints.
Optional ReadonlydescriptionA string of up to 4000 characters that describes the parameter.
OptionalfromOptional ReadonlymaxAn integer value that determines the largest number of characters you want to allow for String types.
Optional ReadonlymaxA numeric value that determines the largest numeric value you want to allow for Number types.
Optional ReadonlyminAn integer value that determines the smallest number of characters you want to allow for String types.
Optional ReadonlyminA numeric value that determines the smallest numeric value you want to allow for Number types.
Optional ReadonlynoWhether to mask the parameter value when anyone makes a call that describes the stack.
If you set the value to true, the parameter value is masked with asterisks (*****).
Optional ReadonlytypeThe data type for the parameter (DataType).
A regular expression that represents the patterns to allow for String types.