/// tip | Dica

O callback real é apenas uma solicitação HTTP.

Quando implementando o callback por você mesmo, você pode usar algo como <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a> ou <a href="https://requests.readthedocs.io/" class="external-link" target="_blank">Requisições</a>.

///

## Escrevendo o código de documentação do callback

* 这种方式更适于处理图像、视频、二进制文件等大型文件，好处是不会占用所有内存；
* 可获取上传文件的元数据；
* 自带 <a href="https://docs.python.org/zh-cn/3/glossary.html#term-file-like-object" class="external-link" target="_blank">file-like</a> `async` 接口；
* 暴露的 Python <a href="https://docs.python.org/zh-cn/3/library/tempfile.html#tempfile.SpooledTemporaryFile" class="external-link" target="_blank">`SpooledTemporaryFile`</a> 对象，可直接传递给其他预期「file-like」对象的库。

### `UploadFile`

`UploadFile` 的属性如下：

                <div class="col-md-12">
                    <div class="card card-outline card-success">
                        <div class="card-header">
                            <h3 class="card-title">
                                <la:message key="labels.bad_word_link_upload"/>
                            </h3>
                            <div class="card-tools">
                                <div class="btn-group">

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.dict_mapping_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.dict_synonym_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.dict_mapping_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">

        Method m = Baz.class.getMethod("rawMap", Map.class);
        assertThat(MethodUtil.getValueTypeOfMapFromReturnType(m), is(nullValue()));

        m = Baz.class.getMethod("genericMap", Map.class);
        assertThat(MethodUtil.getValueTypeOfMapFromReturnType(m), is(sameClass(Class.class)));
    }

    /**
     *
     */
    public interface Baz {

        /**

          <item index="5" class="java.lang.String" itemvalue="io.reactivex.annotations.Nullable" />
          <item index="6" class="java.lang.String" itemvalue="io.reactivex.rxjava3.annotations.Nullable" />
          <item index="7" class="java.lang.String" itemvalue="jakarta.annotation.Nullable" />

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.wizard_start_crawling_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">

					<div class="input-group">
						<la:text property="q" maxlength="1000" styleId="query"
							styleClass="form-control" autocomplete="off" />
						<span class="input-group-append">
							<button type="submit" name="search" id="searchButton"
								class="btn btn-primary">
								<em class="fa fa-search">
							</button>
							<button type="button" class="btn btn-light"