First check-in of the code from the Obsidian Prj project.

src/types/InitDelegate.ts

@@ -0,0 +1,9 @@
+/**
+ * A function type representing an initializer that transforms an input of type `T`
+ * into an output of type `U`.
+ * @template T - The type of the input parameter.
+ * @template U - The type of the output parameter.
+ * @param x - The input parameter of type `T`.
+ * @returns The transformed output of type `U`.
+ */
+export type InitDelegate<T, U> = (x: T) => U;