createCustomer mutation with custom attribute in magento2

I Have created a module to add custom attribute to createCustomer mutation.

Vendor/Module/etc/extension_attributes.xml

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
<extension_attributes for="MagentoCustomerApiDataCustomerInterface">
    <attribute code="custom_attr" type="string"/>
</extension_attributes>

Vendor/Module/etc/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<type name="MagentoCustomerApiDataCustomerInterface">
    <arguments>
        <argument name="extensionAttributesObjects" xsi:type="array">
            <item name="custom_attr" xsi:type="string">VendorModuleApiDataCustomerExtensionInterface</item>
        </argument>
    </arguments>
</type>

VendorModuleApiDataCustomerExtensionInterface.php

<?php

namespace VendorModuleApiData;

interface CustomerExtensionInterface
 {
/**
 * Get customAttr
 *
 * @return string|null
 */
public function getCustomAttr(): ?string;

/**
 * Set custom_attr
 *
 * @param string|null $custom_attr
 * @return $this
 */
 public function setCustomAttr(?string $custom_attr): self;
 }

Now I am trying this request in createCustomer Mutattion

mutation {
  createCustomer(
    input: {
     firstname: "test"
     lastname: "test"
     email: "[email protected]"
     is_subscribed: true
     custom_attr: "test value"
   }
 ) {
    customer {
     id
     firstname
     lastname
     email
    }
  }
 }

Note: created the “custom_attr” customer attribute with data patch.

Getting below error

“message”: “Field “custom_attr” is not defined by type CustomerInput.”,

Can someone help me on this how to custom attribute in the create customer mutation in graphQL.