Added missing bits of documentation.

src/OAuth2/OAuth2AuthorizationRequest.php

@@ -26,26 +26,56 @@ final class OAuth2AuthorizationRequest {
         private readonly int $interval
     ) {}
 
+    /**
+     * Gets device code, meant to be sent to the server.
+     *
+     * @return string
+     */
     public function getDeviceCode(): string {
         return $this->deviceCode;
     }
 
+    /**
+     * Gets user code, meant to be entered by the user.
+     *
+     * @return string
+     */
     public function getUserCode(): string {
         return $this->userCode;
     }
 
+    /**
+     * Gets the verification page URI, without autofill.
+     *
+     * @return string
+     */
     public function getVerificationUri(): string {
         return $this->verificationUri;
     }
 
+    /**
+     * Gets the verification page URI, with autofill.
+     *
+     * @return string
+     */
     public function getVerificationUriComplete(): string {
         return $this->verificationUriComplete;
     }
 
+    /**
+     * Gets amount of seconds in which this authorisation requests will expire.
+     *
+     * @return int
+     */
     public function getExpiresIn(): int {
         return $this->expiresIn;
     }
 
+    /**
+     * Gets amount of seconds at which interval we're meant to poll at.
+     *
+     * @return int
+     */
     public function getInterval(): int {
         return $this->interval;
     }

src/OAuth2/OAuth2Token.php

@@ -24,22 +24,49 @@ final class OAuth2Token {
         private readonly string $refreshToken
     ) {}
 
+    /**
+     * Gets OAuth2 access token.
+     *
+     * @return string
+     */
     public function getAccessToken(): string {
         return $this->accessToken;
     }
 
+    /**
+     * Gets OAuth2 token type.
+     *
+     * Always 'Bearer' unless something crazy happens in the future.
+     *
+     * @return string
+     */
     public function getTokenType(): string {
         return $this->tokenType;
     }
 
+    /**
+     * Gets amount of seconds in which the access token expires.
+     *
+     * @return int
+     */
     public function getExpiresIn(): int {
         return $this->expiresIn;
     }
 
+    /**
+     * Gets possible alternate scope than what was initially requested by the application, empty if unchanged.
+     *
+     * @return string
+     */
     public function getScope(): string {
         return $this->scope;
     }
 
+    /**
+     * Gets refresh token used to request a new access token.
+     *
+     * @return string
+     */
     public function getRefreshToken(): string {
         return $this->refreshToken;
     }