4 files changed, 31 insertions, 26 deletions
diff --git a/src/serializers/to_json.test.ts b/src/serializers/to_json.test.ts
index 22f7ba8..4184ab1 100644
--- a/src/serializers/to_json.test.ts
+++ b/src/serializers/to_json.test.ts
@@ -2,11 +2,11 @@ import FlatMatter from "../flatmatter.ts";
 import ToJson from "./to_json.ts";
 
 test("Single-level configuration", () => {
-    const fm = new FlatMatter(
-        'a: true\nb: false\nc: 1\nd: 12.5\nf: "some string"'
-    );
+  const fm = new FlatMatter(
+    'a: true\nb: false\nc: 1\nd: 12.5\nf: "some string"'
+  );
 
-    const equal = "{\"a\":true,\"b\":false,\"c\":1,\"d\":12.5,\"f\":\"some string\"}";
-    
-    expect(fm.serialize(new ToJson())).toStrictEqual(equal);
+  const equal = '{"a":true,"b":false,"c":1,"d":12.5,"f":"some string"}';
+
+  expect(fm.serialize(new ToJson())).toStrictEqual(equal);
 });
diff --git a/src/serializers/to_json.ts b/src/serializers/to_json.ts
index 76148db..30cf417 100644
--- a/src/serializers/to_json.ts
+++ b/src/serializers/to_json.ts
@@ -1,7 +1,7 @@
 import type { Serializer } from "../flatmatter.ts";
 
-export default class ToJson implements Serializer {
-  serialize(parsedConfig: Record<string, unknown>): string {
-    return JSON.stringify(parsedConfig);
+export default class ToJson implements Serializer<string> {
+  serialize(config: Record<string, unknown>): string {
+    return JSON.stringify(config);
   }
 }
diff --git a/src/serializers/to_object.test.ts b/src/serializers/to_object.test.ts
index 7059458..28cb78e 100644
--- a/src/serializers/to_object.test.ts
+++ b/src/serializers/to_object.test.ts
@@ -1,4 +1,4 @@
-import FlatMatter, {type FlatMatterFn} from "../flatmatter.ts";
+import FlatMatter, { type FlatMatterFn } from "../flatmatter.ts";
 import ToObject from "./to_object.ts";
 
 test("Single-level configuration", () => {
@@ -48,7 +48,7 @@ test("Simple function usage", () => {
     }
   }
 
-  const fm = new FlatMatter('a: (to-upper "value")', [new ToUpper]);
+  const fm = new FlatMatter('a: (to-upper "value")', [new ToUpper()]);
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
@@ -65,7 +65,7 @@ test("Piped function by reference usage", () => {
     }
   }
 
-  const fm = new FlatMatter('a: "value" / to-upper', [new ToUpper]);
+  const fm = new FlatMatter('a: "value" / to-upper', [new ToUpper()]);
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
@@ -82,7 +82,7 @@ test("Piped function by call usage", () => {
     }
   }
 
-  const fm = new FlatMatter('a: "value" / (to-upper 123)', [new ToUpper]);
+  const fm = new FlatMatter('a: "value" / (to-upper 123)', [new ToUpper()]);
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
@@ -95,16 +95,16 @@ test("Invalid value in pipe", () => {
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({});
-})
+});
 
 test("Invalid value in pipe, 2", () => {
   const fm = new FlatMatter('a: "value" / asd');
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
-    a: "value"
+    a: "value",
   });
-})
+});
 
 test("Only piped functions", () => {
   class FirstFn implements FlatMatterFn {
@@ -123,11 +123,14 @@ test("Only piped functions", () => {
     }
   }
 
-  const fm = new FlatMatter('a: (first-fn "value / here") / second-fn', [new FirstFn, new SecondFn]);
+  const fm = new FlatMatter('a: (first-fn "value / here") / second-fn', [
+    new FirstFn(),
+    new SecondFn(),
+  ]);
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
-    a: "VALUE / HERE-passed-by-second"
+    a: "VALUE / HERE-passed-by-second",
   });
 });
 
@@ -140,13 +143,13 @@ test("Function call without any args", () => {
     }
   }
 
-  const fm = new FlatMatter('a: "value" / (to-upper)', [new ToUpper]);
+  const fm = new FlatMatter('a: "value" / (to-upper)', [new ToUpper()]);
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
     a: "VALUE",
   });
-})
+});
 
 test("Function call using multiple strings with spaces as arg", () => {
   class ToUpper implements FlatMatterFn {
@@ -157,10 +160,12 @@ test("Function call using multiple strings with spaces as arg", () => {
     }
   }
 
-  const fm = new FlatMatter('a: (to-upper "value goes here" "and here")', [new ToUpper]);
+  const fm = new FlatMatter('a: (to-upper "value goes here" "and here")', [
+    new ToUpper(),
+  ]);
   const config = fm.serialize(new ToObject());
 
   expect(config).toStrictEqual({
     a: "VALUE GOES HERE",
   });
-})
-\ No newline at end of file
+});
diff --git a/src/serializers/to_object.ts b/src/serializers/to_object.ts
index a7161cc..79b2886 100644
--- a/src/serializers/to_object.ts
+++ b/src/serializers/to_object.ts
@@ -1,7 +1,7 @@
-import type {Serializer} from "../flatmatter.ts";
+import type { Serializer } from "../flatmatter.ts";
 
-export default class ToObject implements Serializer {
-  serialize(parsedConfig: Record<string, unknown>): Record<string, unknown> {
-    return parsedConfig;
+export default class ToObject implements Serializer<Record<string, unknown>> {
+  serialize(config: Record<string, unknown>): Record<string, unknown> {
+    return config;
   }
 }