🤖 Merge PR DefinitelyTyped#47073 [ramda] infer return type of unary by @imcotton

Author: imcotton

types/ramda/index.d.ts

@@ -1965,7 +1965,7 @@ export function unapply<T>(fn: (args: readonly any[]) => T): (...args: readonly
  * Wraps a function of any arity (including nullary) in a function that accepts exactly 1 parameter.
  * Any extraneous parameters will not be passed to the supplied function.
  */
-export function unary<T>(fn: (a: T, ...args: readonly any[]) => any): (a: T) => any;
+export function unary<T, R>(fn: (a: T, ...args: readonly any[]) => R): (a: T) => R;
 
 /**
  * Returns a function of arity n from a (manually) curried function.

types/ramda/test/unary-tests.ts

@@ -11,7 +11,7 @@ import * as R from 'ramda';
     return [a, b, c];
   }
 
-  const u1: (a: any) => any = R.unary(takesOneArg);
-  const u2: (a: any) => any = R.unary(takesTwoArgs);
-  const u3: (a: any) => any = R.unary(takesThreeArgs);
+  const u1: (a: number) => number[] = R.unary(takesOneArg);
+  const u2: (a: number) => number[] = R.unary(takesTwoArgs);
+  const u3: (a: number) => number[] = R.unary(takesThreeArgs);
 };