How to use the apicurio-data-models.Library.readNode function in apicurio-data-models

public addSecurityRequirement(event: SecurityRequirementEditorEvent): void {
        console.info("[SecurityRequirementsSectionComponent] Adding security requirement: ", event);
        let requirement: OasSecurityRequirement = this.parent.createSecurityRequirement();
        Library.readNode(event.data, requirement);
        let command: ICommand = CommandFactory.createAddSecurityRequirementCommand(this.parent, requirement);
        this.commandService.emit(command);
    }

public changeSecurityRequirement(event: SecurityRequirementEditorEvent): void {
        let newRequirement: OasSecurityRequirement = this.parent.createSecurityRequirement();
        Library.readNode(event.data, newRequirement);
        let command: ICommand = CommandFactory.createReplaceSecurityRequirementCommand(event.entity, newRequirement);
        this.commandService.emit(command);
    }