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class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_bxCs"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Validators</h1></header><p>Both QueryParams and Data models can benefit from the tactical use of Pydantic validators.
This page will outline some of the key scenarios where they are deployed.
Overall, they assist with enforcing Fast API compliance for both inputs and outputs,
and they work in the final stage of transformation immediately before output.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="why-use-validators">Why Use Validators?<a href="#why-use-validators" class="hash-link" aria-label="Direct link to Why Use Validators?" title="Direct link to Why Use Validators?">​</a></h2><p>Some situations where they are used include:</p><ul><li>Transform, conform, or otherwise alter the entered query parameter or returned data value.</li><li>A query parameter or data field is a date.</li><li>A query parameter requires a dynamic default state.</li><li>Normalizing percent values.</li><li>Cleaning NaN values.</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="examples">Examples<a href="#examples" class="hash-link" aria-label="Direct link to Examples" title="Direct link to Examples">​</a></h2><p>The items to import from the Pydantic library are:</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#9CDCFE;--prism-background-color:#1E1E1E"><div class="codeBlockContent_m3Ux"><pre tabindex="0" class="prism-code language-python codeBlock_qGQc thin-scrollbar"><code class="codeBlockLines_p187"><span class="token-line" style="color:#9CDCFE"><span class="token keyword" style="color:rgb(86, 156, 214)">from</span><span class="token plain"> pydantic </span><span class="token keyword" style="color:rgb(86, 156, 214)">import</span><span class="token plain"> field_validator</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> model_validator</span><br></span></code></pre><div class="buttonGroup_6DOT"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="parsing-dates">Parsing Dates<a href="#parsing-dates" class="hash-link" aria-label="Direct link to Parsing Dates" title="Direct link to Parsing Dates">​</a></h3><p>Providers will format dates in a number of ways. OpenBB uses YYYY-MM-DD as the standard convention, for both inputs and outputs.
Outputs are a <code>datetime</code> object or JSON serlialized string. Validators are used to parse the date from the specific format.
This example is used within a provider&#x27;s <code>Data</code> model.</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#9CDCFE;--prism-background-color:#1E1E1E"><div class="codeBlockContent_m3Ux"><pre tabindex="0" class="prism-code language-python codeBlock_qGQc thin-scrollbar"><code class="codeBlockLines_p187"><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@field_validator</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;last_trade_timestamp&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> mode</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;before&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> check_fields</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token boolean">False</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@classmethod</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">def</span><span class="token plain"> </span><span class="token function" style="color:rgb(220, 220, 170)">parse_timestamp</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">cls</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> v</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:rgb(206, 145, 120)">&quot;&quot;&quot;Parse a Unix timestamp.&quot;&quot;&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">return</span><span class="token plain"> datetime</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">fromtimestamp</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">v</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><br></span></code></pre><div class="buttonGroup_6DOT"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="normalize-percent-values">Normalize Percent Values<a href="#normalize-percent-values" class="hash-link" aria-label="Direct link to Normalize Percent Values" title="Direct link to Normalize Percent Values">​</a></h3><p>At the provider level, we want to standardize the way values representing a percent are returned.
It is our intention to ensure those values are ready-to-consume by formulas without conversion.
This example would be used within a provider&#x27;s <code>Data</code> model.</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#9CDCFE;--prism-background-color:#1E1E1E"><div class="codeBlockContent_m3Ux"><pre tabindex="0" class="prism-code language-python codeBlock_qGQc thin-scrollbar"><code class="codeBlockLines_p187"><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@field_validator</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;change_percent&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> mode</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;before&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> check_fields</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token boolean">False</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@classmethod</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">def</span><span class="token plain"> </span><span class="token function" style="color:rgb(220, 220, 170)">normalize_percent</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">cls</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> v</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:rgb(206, 145, 120)">&quot;&quot;&quot;Normalize the percent.&quot;&quot;&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">return</span><span class="token plain"> v </span><span class="token operator" style="color:rgb(212, 212, 212)">/</span><span class="token plain"> </span><span class="token number" style="color:rgb(181, 206, 168)">100</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">if</span><span class="token plain"> v </span><span class="token keyword" style="color:rgb(86, 156, 214)">else</span><span class="token plain"> </span><span class="token boolean">None</span><br></span></code></pre><div class="buttonGroup_6DOT"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="dynamic-default-date">Dynamic Default Date<a href="#dynamic-default-date" class="hash-link" aria-label="Direct link to Dynamic Default Date" title="Direct link to Dynamic Default Date">​</a></h3><p>It might be desirable to have a default date parameter that is not static. To allow this, we must set the default parameter value as <code>None</code>, and use the <code>model_validator</code>. This example is for the <code>QueryParams</code>.</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#9CDCFE;--prism-background-color:#1E1E1E"><div class="codeBlockContent_m3Ux"><pre tabindex="0" class="prism-code language-python codeBlock_qGQc thin-scrollbar"><code class="codeBlockLines_p187"><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@model_validator</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">mode</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;before&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@classmethod</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">def</span><span class="token plain"> </span><span class="token function" style="color:rgb(220, 220, 170)">validate_dates</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">cls</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"> </span><span class="token operator" style="color:rgb(212, 212, 212)">-</span><span class="token operator" style="color:rgb(212, 212, 212)">&gt;</span><span class="token plain"> </span><span class="token builtin" style="color:rgb(86, 156, 214)">dict</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:rgb(206, 145, 120)">&quot;&quot;&quot;Validate the query parameters.&quot;&quot;&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">if</span><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">get</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;start_date&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">is</span><span class="token plain"> </span><span class="token boolean">None</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">[</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;start_date&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">]</span><span class="token plain"> </span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">datetime</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">now</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"> </span><span class="token operator" style="color:rgb(212, 212, 212)">-</span><span class="token plain"> timedelta</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">days</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token number" style="color:rgb(181, 206, 168)">90</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">date</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">if</span><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">get</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;end_date&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">is</span><span class="token plain"> </span><span class="token boolean">None</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">[</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;end_date&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">]</span><span class="token plain"> </span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token plain"> datetime</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">now</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">date</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">return</span><span class="token plain"> values</span><br></span></code></pre><div class="buttonGroup_6DOT"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="replace-0s-with-none">Replace 0s With None<a href="#replace-0s-with-none" class="hash-link" aria-label="Direct link to Replace 0s With None" title="Direct link to Replace 0s With None">​</a></h3><p>Sometimes values are returned as a <code>0</code> when they should really be a <code>null</code>.
This example looks at the entire <code>Data</code> model, but could easily be adapted to use on individual fields.</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#9CDCFE;--prism-background-color:#1E1E1E"><div class="codeBlockContent_m3Ux"><pre tabindex="0" class="prism-code language-python codeBlock_qGQc thin-scrollbar"><code class="codeBlockLines_p187"><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@model_validator</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">mode</span><span class="token operator" style="color:rgb(212, 212, 212)">=</span><span class="token string" style="color:rgb(206, 145, 120)">&quot;before&quot;</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:rgb(212, 212, 212)">@classmethod</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">def</span><span class="token plain"> </span><span class="token function" style="color:rgb(220, 220, 170)">replace_zero</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">cls</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:rgb(206, 145, 120)">&quot;&quot;&quot;Check for zero values and replace with None.&quot;&quot;&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">return</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(212, 212, 212)">{</span><span class="token plain">k</span><span class="token punctuation" style="color:rgb(212, 212, 212)">:</span><span class="token plain"> </span><span class="token boolean">None</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">if</span><span class="token plain"> v </span><span class="token operator" style="color:rgb(212, 212, 212)">==</span><span class="token plain"> </span><span class="token number" style="color:rgb(181, 206, 168)">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">else</span><span class="token plain"> v </span><span class="token keyword" style="color:rgb(86, 156, 214)">for</span><span class="token plain"> k</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> v </span><span class="token keyword" style="color:rgb(86, 156, 214)">in</span><span class="token plain"> values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">.</span><span class="token plain">items</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token punctuation" style="color:rgb(212, 212, 212)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">if</span><span class="token plain"> </span><span class="token builtin" style="color:rgb(86, 156, 214)">isinstance</span><span class="token punctuation" style="color:rgb(212, 212, 212)">(</span><span class="token plain">values</span><span class="token punctuation" style="color:rgb(212, 212, 212)">,</span><span class="token plain"> </span><span class="token builtin" style="color:rgb(86, 156, 214)">dict</span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token keyword" style="color:rgb(86, 156, 214)">else</span><span class="token plain"> values</span><br></span><span class="token-line" style="color:#9CDCFE"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(212, 212, 212)">)</span><br></span></code></pre><div class="buttonGroup_6DOT"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/OpenBB-finance/OpenBBTerminal/edit/main/website/content/platform/development/contributing/validators.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" 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