vich_uploader.xsd

<xs:schema
        attributeFormDefault="unqualified"
        elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema"
        targetNamespace="https://vich-uploader-bundle/schema/"
>
    <xs:element name="vich_uploader">
        <xs:complexType>

            <xs:sequence>

                <xs:element name="field">
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:string">
                                <xs:attribute type="xs:string" name="name" use="required"/>
                                <xs:attribute type="xs:string" name="mapping" use="required"/>
                                <xs:attribute type="xs:string" name="filename_property" use="required"/>
                                <xs:attribute type="xs:string" name="size"/>
                                <xs:attribute type="xs:string" name="dimensions"/>
                                <xs:attribute type="xs:string" name="mime_type"/>
                                <xs:attribute type="xs:string" name="original_name"/>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>

            <xs:attribute type="xs:string" name="class" use="required"/>

        </xs:complexType>
    </xs:element>
</xs:schema>