<version>4.1</version>
				<configuration>
					<header>https://www.codelibs.org/assets/license/header.txt</header>
					<properties>
						<year>2022</year>
					</properties>
					<includes>
						<include>src/**/*.java</include>
					</includes>
					<encoding>UTF-8</encoding>
					<headerDefinitions>
						<headerDefinition>https://www.codelibs.org/assets/license/header-definition-2.xml</headerDefinition>

        }
        if (paramList == null) {
            paramList = new ArrayList<>();
        }
        paramList.add(encode(key) + "=" + encode(value));
        return this;
    }

    public CurlRequest header(final String key, final String value) {
        if (headerList == null) {
            headerList = new ArrayList<>();
        }
        headerList.add(new String[] { key, value });
        return this;
    }