Object literal may only specify known properties, and 'hasTemplateSet' does not exist in type 'UmbConditionConfigBase<string>'.

typescript
import type { UmbControllerHost } from '@umbraco-cms/backoffice/controller-api';
import { UmbConditionConfigBase, UmbConditionControllerArguments, UmbExtensionCondition } from "@umbraco-cms/backoffice/extension-api";
import { UMB_DOCUMENT_WORKSPACE_CONTEXT  } from '@umbraco-cms/backoffice/document';
import { UmbConditionBase } from '@umbraco-cms/backoffice/extension-registry';

export type TemplateSetConditionConfig = UmbConditionConfigBase<'AccessibilityReporter.Condition.TemplateSet'> & {
    /**
     * HasTemplateSet
     * Decide if the current document should have a template set or not
     *
     * @example
     * true
     */
    hasTemplateSet: boolean;
};

export class TemplateSetCondition extends UmbConditionBase<TemplateSetConditionConfig> implements UmbExtensionCondition
{
    config: TemplateSetConditionConfig;

    constructor(host: UmbControllerHost, args: UmbConditionControllerArguments<TemplateSetConditionConfig>) {
        super(host, args);
        
        this.consumeContext(UMB_DOCUMENT_WORKSPACE_CONTEXT , (workspaceCtx) => {
            this.observe(workspaceCtx.templateId, (templateId) => {
                console.log('templateId', templateId);

                // No template set === null
                // Tempate set we get a GUID back

                // Config says it passes if template IS set (aka NOT null)
                if(this.config.hasTemplateSet && templateId !== null) {
                    this.permitted = true;
                    return;
                }

                // Config says it passes if template is NOT set (aka IS null)
                if(this.config.hasTemplateSet === false && templateId === null) {
                    this.permitted = true;
                    return;
                }

                this.permitted = false;
            })

        });
    }

}

match

as

typescript
conditions: [
    {
        alias: 'Umb.Condition.WorkspaceAlias',
        match: 'Umb.Workspace.Document',
    },
    {
        alias: 'AccessibilityReporter.Condition.TemplateSet',
        hasTemplateSet: true
    } as TemplateSetConditionConfig
],