Trying a first version.

node_modules/@actions/core/lib/utils.d.ts

@@ -0,0 +1,14 @@
+import { AnnotationProperties } from './core';
+import { CommandProperties } from './command';
+/**
+ * Sanitizes an input into a string so it can be passed into issueCommand safely
+ * @param input input to sanitize into a string
+ */
+export declare function toCommandValue(input: any): string;
+/**
+ *
+ * @param annotationProperties
+ * @returns The command properties to send with the actual annotation command
+ * See IssueCommandProperties: https://github.com/actions/runner/blob/main/src/Runner.Worker/ActionCommandManager.cs#L646
+ */
+export declare function toCommandProperties(annotationProperties: AnnotationProperties): CommandProperties;