diff --git a/404.html b/404.html
index 8f3494b..aa0f54b 100644
--- a/404.html
+++ b/404.html
@@ -4,7 +4,7 @@
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 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="generator" content="Crystal Docs 1.8.2">
+<meta name="generator" content="Crystal Docs 1.13.3">
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 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
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 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
diff --git a/LuckyEnv.html b/LuckyEnv.html
index ea284da..82dad16 100644
--- a/LuckyEnv.html
+++ b/LuckyEnv.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8" />
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-<meta name="generator" content="Crystal Docs 1.8.2">
+<meta name="generator" content="Crystal Docs 1.13.3">
 <meta name="crystal_docs.project_version" content="main">
 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
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   </symbol>
 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
@@ -127,21 +132,21 @@ <h2>
   </h2>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L5" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L5" target="_blank">
         lucky_env.cr
       </a>
     
     <br/>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/errors.cr#L1" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/errors.cr#L1" target="_blank">
         lucky_env/errors.cr
       </a>
     
     <br/>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/parser.cr#L1" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/parser.cr#L1" target="_blank">
         lucky_env/parser.cr
       </a>
     
@@ -226,8 +231,6 @@ <h2>
 
 
 
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-
   <h2>
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   <svg class="octicon-link" aria-hidden="true">
@@ -247,6 +250,8 @@ <h2>
 
 
 
+
+
 <div class="methods-inherited">
   
 </div>
@@ -274,7 +279,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L41" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L41" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -290,7 +295,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L37" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L37" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -312,7 +317,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L16" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L16" target="_blank">View source</a>]
         
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     </div>
@@ -333,7 +338,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L27" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L27" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -349,7 +354,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L42" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L42" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -365,7 +370,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L33" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L33" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -381,7 +386,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L43" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L43" target="_blank">View source</a>]
         
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@@ -389,8 +394,6 @@ <h2>
 
 
 
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@@ -411,13 +414,15 @@ <h2>
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-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env.cr#L8" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env.cr#L8" target="_blank">View source</a>]
         
       </div>
     </div>
   
 
 
+
+
 </div>
 
 </body>
diff --git a/LuckyEnv/DuplicateKeyDetectedError.html b/LuckyEnv/DuplicateKeyDetectedError.html
new file mode 100644
index 0000000..6febc83
--- /dev/null
+++ b/LuckyEnv/DuplicateKeyDetectedError.html
@@ -0,0 +1,210 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="generator" content="Crystal Docs 1.13.3">
+<meta name="crystal_docs.project_version" content="main">
+<meta name="crystal_docs.project_name" content="lucky_env">
+
+
+
+<link href="../css/style.css" rel="stylesheet" type="text/css" />
+<script type="text/javascript" src="../js/doc.js"></script>
+
+  <meta name="repository-name" content="lucky_env">
+  <title>LuckyEnv::DuplicateKeyDetectedError - lucky_env main</title>
+  <script type="text/javascript">
+    CrystalDocs.base_path = "../";
+  </script>
+</head>
+<body>
+
+<svg class="hidden">
+  <symbol id="octicon-link" viewBox="0 0 16 16">
+    <path fill="currentColor" fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
+  </symbol>
+</svg>
+<input type="checkbox" id="sidebar-btn">
+<label for="sidebar-btn" id="sidebar-btn-label">
+  <svg class="open" xmlns="http://www.w3.org/2000/svg" height="2em" width="2em" viewBox="0 0 512 512"><title>Open Sidebar</title><path fill="currentColor" d="M80 96v64h352V96H80zm0 112v64h352v-64H80zm0 112v64h352v-64H80z"></path></svg>
+  <svg class="close" xmlns="http://www.w3.org/2000/svg" width="2em" height="2em" viewBox="0 0 512 512"><title>Close Sidebar</title><path fill="currentColor" d="m118.6 73.4-45.2 45.2L210.7 256 73.4 393.4l45.2 45.2L256 301.3l137.4 137.3 45.2-45.2L301.3 256l137.3-137.4-45.2-45.2L256 210.7Z"></path></svg>
+</label>
+<div class="sidebar">
+  <div class="sidebar-header">
+    <div class="search-box">
+      <input type="search" class="search-input" placeholder="Search..." spellcheck="false" aria-label="Search">
+    </div>
+
+    <div class="project-summary">
+      <h1 class="project-name">
+        <a href="../index.html">
+          lucky_env
+        </a>
+      </h1>
+
+      <span class="project-version">
+        main
+      </span>
+    </div>
+  </div>
+
+  <div class="search-results hidden">
+    <ul class="search-list"></ul>
+  </div>
+
+  <div class="types-list">
+    <ul>
+  
+  <li class="parent open current" data-id="lucky_env/LuckyEnv" data-name="luckyenv">
+      <a href="../LuckyEnv.html">LuckyEnv</a>
+      
+        <ul>
+  
+  <li class=" current" data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="../LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
+  <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
+      <a href="../LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
+      
+    </li>
+  
+  <li class=" " data-id="lucky_env/LuckyEnv/MissingFileError" data-name="luckyenv::missingfileerror">
+      <a href="../LuckyEnv/MissingFileError.html">MissingFileError</a>
+      
+    </li>
+  
+  <li class=" " data-id="lucky_env/LuckyEnv/Parser" data-name="luckyenv::parser">
+      <a href="../LuckyEnv/Parser.html">Parser</a>
+      
+    </li>
+  
+</ul>
+
+      
+    </li>
+  
+  <li class=" " data-id="lucky_env/StringModifier" data-name="stringmodifier">
+      <a href="../StringModifier.html">StringModifier</a>
+      
+    </li>
+  
+</ul>
+
+  </div>
+</div>
+
+
+<div class="main-content">
+<h1 class="type-name">
+
+  <span class="kind">class</span> LuckyEnv::<wbr>DuplicateKeyDetectedError
+
+</h1>
+
+
+  <ul class="superclass-hierarchy"><li class="superclass"><a href="../LuckyEnv/DuplicateKeyDetectedError.html">LuckyEnv::DuplicateKeyDetectedError</a></li><li class="superclass">Exception</li><li class="superclass">Reference</li><li class="superclass">Object</li></ul>
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  <h2>
+    <a id="defined-in" class="anchor" href="#defined-in">
+  <svg class="octicon-link" aria-hidden="true">
+    <use href="#octicon-link"/>
+  </svg>
+</a>
+    Defined in:
+  </h2>
+  
+    
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/errors.cr#L8" target="_blank">
+        lucky_env/errors.cr
+      </a>
+    
+    <br/>
+  
+
+
+
+
+
+
+
+
+
+
+
+
+
+<div class="methods-inherited">
+  
+    
+
+
+    
+
+
+    
+
+
+    
+
+
+  
+    
+
+
+    
+
+
+    
+
+
+    
+
+
+  
+    
+
+
+    
+
+
+    
+
+
+    
+
+
+  
+</div>
+
+
+
+
+
+
+
+
+
+</div>
+
+</body>
+</html>
diff --git a/LuckyEnv/InvalidEnvFormatError.html b/LuckyEnv/InvalidEnvFormatError.html
index 0dc2598..7159e58 100644
--- a/LuckyEnv/InvalidEnvFormatError.html
+++ b/LuckyEnv/InvalidEnvFormatError.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8" />
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+<meta name="generator" content="Crystal Docs 1.13.3">
 <meta name="crystal_docs.project_version" content="main">
 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
 <svg class="hidden">
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   </symbol>
 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="../LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" current" data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="../LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
@@ -96,7 +101,7 @@ <h1 class="project-name">
 <div class="main-content">
 <h1 class="type-name">
 
-  <span class="kind">class</span> LuckyEnv::InvalidEnvFormatError
+  <span class="kind">class</span> LuckyEnv::<wbr>InvalidEnvFormatError
 
 </h1>
 
@@ -129,7 +134,7 @@ <h2>
   </h2>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/errors.cr#L2" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/errors.cr#L2" target="_blank">
         lucky_env/errors.cr
       </a>
     
@@ -159,12 +164,18 @@ <h2>
     
 
 
+    
+
+
   
     
 
 
     
 
+
+    
+
 
     
 
@@ -175,6 +186,9 @@ <h2>
 
     
 
+
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+
 
     
 
diff --git a/LuckyEnv/MissingFileError.html b/LuckyEnv/MissingFileError.html
index 3541037..01253c3 100644
--- a/LuckyEnv/MissingFileError.html
+++ b/LuckyEnv/MissingFileError.html
@@ -4,7 +4,7 @@
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 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="generator" content="Crystal Docs 1.8.2">
+<meta name="generator" content="Crystal Docs 1.13.3">
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 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
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-    <path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
+    <path fill="currentColor" fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
   </symbol>
 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="../LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="../LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
@@ -96,7 +101,7 @@ <h1 class="project-name">
 <div class="main-content">
 <h1 class="type-name">
 
-  <span class="kind">class</span> LuckyEnv::MissingFileError
+  <span class="kind">class</span> LuckyEnv::<wbr>MissingFileError
 
 </h1>
 
@@ -129,7 +134,7 @@ <h2>
   </h2>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/errors.cr#L5" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/errors.cr#L5" target="_blank">
         lucky_env/errors.cr
       </a>
     
@@ -159,12 +164,18 @@ <h2>
     
 
 
+    
+
+
   
     
 
 
     
 
+
+    
+
 
     
 
@@ -175,6 +186,9 @@ <h2>
 
     
 
+
+    
+
 
     
 
diff --git a/LuckyEnv/Parser.html b/LuckyEnv/Parser.html
index 6b4a39f..d03abe3 100644
--- a/LuckyEnv/Parser.html
+++ b/LuckyEnv/Parser.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8" />
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="generator" content="Crystal Docs 1.8.2">
+<meta name="generator" content="Crystal Docs 1.13.3">
 <meta name="crystal_docs.project_version" content="main">
 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
 <svg class="hidden">
   <symbol id="octicon-link" viewBox="0 0 16 16">
-    <path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
+    <path fill="currentColor" fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
   </symbol>
 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="../LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="../LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
@@ -96,7 +101,7 @@ <h1 class="project-name">
 <div class="main-content">
 <h1 class="type-name">
 
-  <span class="kind">struct</span> LuckyEnv::Parser
+  <span class="kind">struct</span> LuckyEnv::<wbr>Parser
 
 </h1>
 
@@ -143,7 +148,7 @@ <h2>
   </h2>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/parser.cr#L2" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/parser.cr#L2" target="_blank">
         lucky_env/parser.cr
       </a>
     
@@ -175,6 +180,8 @@ <h2>
 
 
 
+
+
   <h2>
     <a id="instance-method-summary" class="anchor" href="#instance-method-summary">
   <svg class="octicon-link" aria-hidden="true">
@@ -204,8 +211,6 @@ <h2>
 
 
 
-
-
 <div class="methods-inherited">
   
     
@@ -231,6 +236,9 @@ <h3>Instance methods inherited from module <code><a href="../StringModifier.html
     
 
 
+    
+
+
   
     
 
@@ -241,12 +249,18 @@ <h3>Instance methods inherited from module <code><a href="../StringModifier.html
     
 
 
+    
+
+
   
     
 
 
     
 
+
+    
+
 
     
 
@@ -257,6 +271,9 @@ <h3>Instance methods inherited from module <code><a href="../StringModifier.html
 
     
 
+
+    
+
 
     
 
@@ -285,7 +302,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/parser.cr#L2" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/parser.cr#L2" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -295,6 +312,8 @@ <h2>
 
 
 
+
+
   <h2>
     <a id="instance-method-detail" class="anchor" href="#instance-method-detail">
   <svg class="octicon-link" aria-hidden="true">
@@ -315,7 +334,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/parser.cr#L2" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/parser.cr#L2" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -331,7 +350,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/parser.cr#L5" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/parser.cr#L5" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -347,15 +366,13 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/parser.cr#L24" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/parser.cr#L24" target="_blank">View source</a>]
         
       </div>
     </div>
   
 
 
-
-
 </div>
 
 </body>
diff --git a/StringModifier.html b/StringModifier.html
index d1b18fd..6461159 100644
--- a/StringModifier.html
+++ b/StringModifier.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8" />
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="generator" content="Crystal Docs 1.8.2">
+<meta name="generator" content="Crystal Docs 1.13.3">
 <meta name="crystal_docs.project_version" content="main">
 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
 <svg class="hidden">
   <symbol id="octicon-link" viewBox="0 0 16 16">
-    <path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
+    <path fill="currentColor" fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
   </symbol>
 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
@@ -141,7 +146,7 @@ <h2>
   </h2>
   
     
-      <a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/string_modifier.cr#L1" target="_blank">
+      <a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/string_modifier.cr#L1" target="_blank">
         lucky_env/string_modifier.cr
       </a>
     
@@ -156,6 +161,8 @@ <h2>
 
 
 
+
+
   <h2>
     <a id="instance-method-summary" class="anchor" href="#instance-method-summary">
   <svg class="octicon-link" aria-hidden="true">
@@ -184,8 +191,6 @@ <h2>
 
 
 
-
-
 <div class="methods-inherited">
   
 </div>
@@ -195,6 +200,8 @@ <h2>
 
 
 
+
+
   <h2>
     <a id="instance-method-detail" class="anchor" href="#instance-method-detail">
   <svg class="octicon-link" aria-hidden="true">
@@ -220,7 +227,7 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/string_modifier.cr#L13" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/string_modifier.cr#L13" target="_blank">View source</a>]
         
       </div>
     </div>
@@ -241,15 +248,13 @@ <h2>
       <br/>
       <div>
         
-          [<a href="https://github.com/luckyframework/lucky_env/blob/8bd2202d427d394a64af446bed2290c1d7443559/src/lucky_env/string_modifier.cr#L3" target="_blank">View source</a>]
+          [<a href="https://github.com/luckyframework/lucky_env/blob/7213dfd2858f6ed11b5caec70ef247c534296223/src/lucky_env/string_modifier.cr#L3" target="_blank">View source</a>]
         
       </div>
     </div>
   
 
 
-
-
 </div>
 
 </body>
diff --git a/css/style.css b/css/style.css
index 2b91cf4..3d0a8a5 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1,3 +1,7 @@
+:root {
+  color-scheme: light dark;
+}
+
 html, body {
   background: #FFFFFF;
   position: relative;
@@ -729,6 +733,30 @@ img {
   max-width: 100%;
 }
 
+table {
+  font-size: 14px;
+  display: block;
+  max-width: -moz-fit-content;
+  max-width: fit-content;
+  overflow-x: auto;
+  white-space: nowrap;
+  background: #fdfdfd;
+  text-align: center;
+  border: 1px solid #eee;
+  border-collapse: collapse;
+  padding: 0px 5px 0px 5px;
+}
+
+table th {
+  padding: 10px;
+  letter-spacing: 1px;
+  border-bottom: 1px solid #eee;
+}
+
+table td {
+  padding: 10px;
+}
+
 #sidebar-btn {
   height: 32px;
   width: 32px;
@@ -794,10 +822,6 @@ img {
 }
 
 @media (prefers-color-scheme: dark) {
-  :root {
-    color-scheme: dark;
-  }
-
   html, body {
     background: #1b1b1b;
   }
@@ -824,6 +848,10 @@ img {
     border: 1px solid #353535;
   }
 
+  .project-versions-nav > option {
+    background-color: #222;
+  }
+
   .superclass-hierarchy .superclass a,
   .superclass-hierarchy .superclass a:visited,
   .other-type a,
@@ -935,13 +963,18 @@ img {
     color: white;
   }
 
-  pre {
+  pre,
+  table {
     color: white;
     background: #202020;
     border: 1px solid #353535;
   }
 
+  table th {
+    border-bottom: 1px solid #353535;
+  }
+
   #sidebar-btn, #sidebar-btn-label {
-    color: white; 
+    color: white;
   }
 }
diff --git a/index.html b/index.html
index 79a3f9e..db90cde 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8" />
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<meta name="generator" content="Crystal Docs 1.8.2">
+<meta name="generator" content="Crystal Docs 1.13.3">
 <meta name="crystal_docs.project_version" content="main">
 <meta name="crystal_docs.project_name" content="lucky_env">
 
@@ -23,7 +23,7 @@
 
 <svg class="hidden">
   <symbol id="octicon-link" viewBox="0 0 16 16">
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+    <path fill="currentColor" fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path>
   </symbol>
 </svg>
 <input type="checkbox" id="sidebar-btn">
@@ -62,6 +62,11 @@ <h1 class="project-name">
       
         <ul>
   
+  <li class=" " data-id="lucky_env/LuckyEnv/DuplicateKeyDetectedError" data-name="luckyenv::duplicatekeydetectederror">
+      <a href="LuckyEnv/DuplicateKeyDetectedError.html">DuplicateKeyDetectedError</a>
+      
+    </li>
+  
   <li class=" " data-id="lucky_env/LuckyEnv/InvalidEnvFormatError" data-name="luckyenv::invalidenvformaterror">
       <a href="LuckyEnv/InvalidEnvFormatError.html">InvalidEnvFormatError</a>
       
diff --git a/index.json b/index.json
index 57e164d..db16a1a 100644
--- a/index.json
+++ b/index.json
@@ -1 +1 @@
-{"repository_name":"lucky_env","body":"# LuckyEnv\n\nYet another environment variable manager. Read from a file like a `.env`\n\n## Installation\n\n1. Add the dependency to your `shard.yml`:\n\n```yaml\ndependencies:\n  lucky_env:\n    github: luckyframework/lucky_env\n```\n\n2. Run `shards install`\n\n## Usage\n\n### Environment variable file\n\nCreate your \"env\" file. Name it whatever you want. Most common is `.env`.\n\nThe file is created with key/value pairs separated by `=`.\n\n```text\nAPP_NAME=my_app\nLUCKY_ENV=development\nDEV_PORT=3002\nDB_NAME=${APP_NAME}_${LUCKY_ENV}\n```\n\n### Crystal code\n\n```crystal\n# This would normally go in your `src/shards.cr` file\nrequire \"lucky_env\"\n\n# Loads the \".env\" file. Raises if it is missing\nLuckyEnv.load(\".env\")\n\n# Use `load?` if the file is optional. \n# This will not raise if the file is missing\nLuckyEnv.load?(\".env\")\n\nENV[\"LUCKY_ENV\"] == \"development\" # => true\n\n# Returns whatever `ENV[\"LUCKY_ENV\"]` is set to, or `\"development\"` if not set.\nLuckyEnv.environment # => \"development\"\n\n# Environment predicates\nLuckyEnv.development? # => true\nLuckyEnv.production? # => false\nLuckyEnv.test? # => false\n```\n\n## Development\n\nInstall shards `shards install`, and start making changes.\nBe sure to run `./bin/ameba`, and the crystal formatter `crystal tool format spec src`.\n\nRead through the issues for things you can work on. If you have an idea, feel free to\nopen a new issue!\n\n## Contributing\n\n1. Fork it (<https://github.com/luckyframework/lucky_env/fork>)\n2. Create your feature branch (`git checkout -b my-new-feature`)\n3. Commit your changes (`git commit -am 'Add some feature'`)\n4. Push to the branch (`git push origin my-new-feature`)\n5. 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\ No newline at end of file
diff --git a/js/doc.js b/js/doc.js
index 45d38b9..eaedd5c 100644
--- a/js/doc.js
+++ b/js/doc.js
@@ -1000,7 +1000,7 @@ document.addEventListener('DOMContentLoaded', function() {
     // TODO: Add OpenSearch description
     var searchQuery = location.hash.substring(3);
     history.pushState({searchQuery: searchQuery}, "Search for " + searchQuery, location.href.replace(/#q=.*/, ""));
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+    searchInput.value = decodeURIComponent(searchQuery);
     document.addEventListener('CrystalDocs:loaded', performSearch);
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diff --git a/search-index.js b/search-index.js
index 5d104bc..2fd657a 100644
--- a/search-index.js
+++ b/search-index.js
@@ -1 +1 @@
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\ No newline at end of file