[csv-stringify] Allow .write to write array with optional encoding and callback

types/csv-stringify/csv-stringify-tests.ts

@@ -25,6 +25,9 @@ stringify([["1", true, new Date()], ["4", false, new Date()]], {
 stream = stringify({ delimiter: "," });
 
 stream.write(["1", "2", "3"]);
+stream.write(["4", true, new Date()], 'utf8', (err: Error, output: string): void => {
+  // nothing
+});
 
 const transform: NodeJS.ReadWriteStream = stream;
 

types/csv-stringify/index.d.ts

@@ -69,12 +69,11 @@ declare namespace stringify {
     }
 
     interface Stringifier extends NodeJS.ReadWriteStream {
-        // Stringifier stream takes array of strings or Object
-        write(line: string[] | any): boolean;
+        // Stringifier stream takes array of strings or Object, and optional encoding and callback
+        write(line: string[] | any, encoding?: string, cb?: (error: Error | undefined, output: string) => void): boolean;
 
         // repeat declarations from NodeJS.WritableStream to avoid compile error
-        write(buffer: string | Buffer, cb?: () => void): boolean;
-        write(str: string, encoding?: string, cb?: () => void): boolean;
+        write(buffer: string | Buffer, cb?: (error: Error | undefined, output: string) => void): boolean;
     }
 }