updated docs and comments

src/Definition.php

@@ -98,6 +98,7 @@ class Definition
      * @var string
      */
     public $documentation;
+    
     /**
      * Parameters array (for methods and functions), for use in textDocument/signatureHelp
      *

src/DefinitionResolver.php

@@ -238,10 +238,8 @@ class DefinitionResolver
         $def->parameters = [];
         if (property_exists($node, 'parameters') && $node->parameters) {
             foreach ($node->parameters->getElements() as $param) {
-                //var_dump($param); die();
                 $def->parameters[] = new ParameterInformation(
                     $this->getDeclarationLineFromNode($param),
-                    //$param->getName(), // TODO: rebuild this
                     $this->getDocumentationFromNode($param)
                 );
             }

src/Server/TextDocument.php

@@ -417,6 +417,14 @@ class TextDocument
         });
     }
 
+    /**
+     * The signature help request is sent from the client to the server to request signature information
+     * at a given cursor position.
+     *
+     * @param TextDocumentIdentifier $textDocument The text document
+     * @param Position               $position     The position inside the text document
+     * @return Promise <SignatureHelp>
+     */
     public function signatureHelp(TextDocumentIdentifier $textDocument, Position $position): Promise
     {
         return coroutine(function () use ($textDocument, $position) {