diff --git a/lib/test.d.ts b/lib/test.d.ts
index 5a21c5b..29e794b 100644
--- a/lib/test.d.ts
+++ b/lib/test.d.ts
@@ -3,19 +3,19 @@ interface TestOptions {
    * The number of tests that can be run at the same time. If unspecified, subtests inherit this value from their parent.
    * Default: 1.
    */
-  concurrency?: boolean | number
+  concurrency?: boolean | number;
 
   /**
    * If truthy, the test is skipped. If a string is provided, that string is displayed in the test results as the reason for skipping the test.
    * Default: false.
    */
-  skip?: boolean | string
+  skip?: boolean | string;
 
   /**
    * If truthy, the test marked as TODO. If a string is provided, that string is displayed in the test results as the reason why the test is TODO.
    * Default: false.
    */
-  todo?: boolean | string
+  todo?: boolean | string;
 
   /**
    * A number of milliseconds the test will fail after. If unspecified, subtests inherit this value from their parent.
@@ -29,40 +29,40 @@ interface TestOptions {
   signal?: AbortSignal;
 }
 
-type TestFn = (t: TestContext) => any | Promise<any>
+type TestFn = (t: TestContext) => any | Promise<any>;
 
-export default test
+export default test;
 
-export function test (name: string, options: TestOptions, fn: TestFn): void
-export function test (name: string, fn: TestFn): void
-export function test (options: TestOptions, fn: TestFn): void
-export function test (fn: TestFn): void
+export function test(name: string, options: TestOptions, fn: TestFn): void;
+export function test(name: string, fn: TestFn): void;
+export function test(options: TestOptions, fn: TestFn): void;
+export function test(fn: TestFn): void;
 
 type SuiteFn = (t: SuiteContext) => void;
 
-export function describe (name: string, options: TestOptions, fn: SuiteFn): void
-export function describe (name: string, fn: SuiteFn): void
-export function describe (options: TestOptions, fn: SuiteFn): void
-export function describe (fn: SuiteFn): void
+export function describe(name: string, options: TestOptions, fn: SuiteFn): void;
+export function describe(name: string, fn: SuiteFn): void;
+export function describe(options: TestOptions, fn: SuiteFn): void;
+export function describe(fn: SuiteFn): void;
 
-type ItFn = (t: ItContext) => any | Promise<any>
+type ItFn = (t: ItContext) => any | Promise<any>;
 
-export function it (name: string, options: TestOptions, fn: ItFn): void
-export function it (name: string, fn: ItFn): void
-export function it (options: TestOptions, fn: ItFn): void
-export function it (fn: ItFn): void
+export function it(name: string, options: TestOptions, fn: ItFn): void;
+export function it(name: string, fn: ItFn): void;
+export function it(options: TestOptions, fn: ItFn): void;
+export function it(fn: ItFn): void;
 
 /**
  * An instance of TestContext is passed to each test function in order to interact with the test runner.
  * However, the TestContext constructor is not exposed as part of the API.
  */
- declare class TestContext {
+declare class TestContext {
   /**
    * This function is used to create subtests under the current test. This function behaves in the same fashion as the top level test() function.
    */
-  public test (name: string, options: TestOptions, fn: TestFn): Promise<void>
-  public test (name: string, fn: TestFn): Promise<void>
-  public test (fn: TestFn): Promise<void>
+  public test(name: string, options: TestOptions, fn: TestFn): Promise<void>;
+  public test(name: string, fn: TestFn): Promise<void>;
+  public test(fn: TestFn): Promise<void>;
 
   /**
    * This function is used to write TAP diagnostics to the output.
@@ -70,7 +70,7 @@ export function it (fn: ItFn): void
    *
    * @param message Message to be displayed as a TAP diagnostic.
    */
-  public diagnostic (message: string): void
+  public diagnostic(message: string): void;
 
   /**
    * This function causes the test's output to indicate the test as skipped.
@@ -79,7 +79,7 @@ export function it (fn: ItFn): void
    *
    * @param message Optional skip message to be displayed in TAP output.
    */
-  public skip (message?: string): void
+  public skip(message?: string): void;
 
   /**
    * This function adds a TODO directive to the test's output.
@@ -88,35 +88,32 @@ export function it (fn: ItFn): void
    *
    * @param message Optional TODO message to be displayed in TAP output.
    */
-  public todo (message?: string): void
+  public todo(message?: string): void;
 
   /**
    * Can be used to abort test subtasks when the test has been aborted.
    */
-  public signal: AbortSignal
+  public signal: AbortSignal;
 }
 
-
 /**
- * An instance of SuiteContext is passed to each suite function in order to interact with the test runner. 
+ * An instance of SuiteContext is passed to each suite function in order to interact with the test runner.
  * However, the SuiteContext constructor is not exposed as part of the API.
  */
- declare class SuiteContext {
-
+declare class SuiteContext {
   /**
    * Can be used to abort test subtasks when the test has been aborted.
    */
-  public signal: AbortSignal
+  public signal: AbortSignal;
 }
 
 /**
- * An instance of ItContext is passed to each suite function in order to interact with the test runner. 
+ * An instance of ItContext is passed to each suite function in order to interact with the test runner.
  * However, the ItContext constructor is not exposed as part of the API.
  */
- declare class ItContext {
-
+declare class ItContext {
   /**
    * Can be used to abort test subtasks when the test has been aborted.
    */
-  public signal: AbortSignal
+  public signal: AbortSignal;
 }