method InternalDependencyContainer.prototype.isRegisteredimport { InternalDependencyContainer } from "https://dotland.deno.dev/x/alosaur@v0.37.0/mod.ts"; isRegistered<T>(token: InjectionToken<T>, recursive?): booleanType ParametersTParameterstoken: InjectionToken<T>optionalrecursive = [UNSUPPORTED]Returnsboolean