since v4.0.0 because it does not support type information, use InjectionToken<?> instead.
class OpaqueToken {
constructor(_desc: string)
toString() : string
}
constructor(_desc: string)
toString() : string
exported from core/index, defined in core/src/di/injection_token.ts
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Licensed under the Creative Commons Attribution License 4.0.
https://angular.io/docs/ts/latest/api/core/index/OpaqueToken-class.html