Fix analyze-field-access script

Author: nene

src/CstToDocMap.ts

@@ -1,12 +1,14 @@
 import { Node } from "sql-parser-cst";
 import { AstPath, Doc } from "prettier";
-import { PrintFn } from "./PrintFn";
+import { PrintableKey, PrintFn } from "./PrintFn";
 import { AllPrettierOptions } from "./options";
 
 export type NodeByType<TType, TNode> = Extract<TNode, { type: TType }>;
 
 export type ToDocFn<TNode> = (
-  print: PrintFn<TNode>,
+  // Note: the second type argument could technically be inferred by TypeScript,
+  // but the analyze-field-access script relies on it being explicitly present.
+  print: PrintFn<TNode, PrintableKey<TNode>>,
   node: TNode,
   path: AstPath<TNode>,
   options: AllPrettierOptions<TNode>,