gistfile1.xml

<mule xmlns="http://www.mulesoft.org/schema/mule/core"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:spring="http://www.springframework.org/schema/beans"
      xmlns:googlemaps="http://www.mulesoft.org/schema/mule/googlemaps"
      xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
        http://www.mulesoft.org/schema/mule/googlemaps http://www.mulesoft.org/schema/mule/googlemaps/1.0-SNAPSHOT/mule-googlemaps.xsd">

    <googlemaps:config myProperty="Some string"
            username="xxx" password="yyy"/>

    <flow name="testFlow">
        <googlemaps:my-processor content="Another string"/>
    </flow>

</mule>