# reflectType function

TypeMirror reflectType (Type key, [ List<Type> typeArguments ])

Reflects the type represented by `key`.

If `key` is not an instance of Type, then this function throws an ArgumentError.

Optionally takes a list of `typeArguments` for generic classes. If the list is provided, then the `key` must be a generic class type, and the number of the provided type arguments must be equal to the number of type variables declared by the class.

Note that since one cannot obtain a Type object from another isolate, this function can only be used to obtain type mirrors on types of the current isolate.

## Implementation

    external TypeMirror reflectType(Type key, [List<Type> typeArguments]);