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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def custom_properties(self, props):
 """ Sets the custom properties file to use. :param props: the props file :type props: str """

        fprops = javabridge.make_instance("java/io/File", "(Ljava/lang/String;)V", props)
        javabridge.call(self.jobject, "setCustomPropsFile", "(Ljava/io/File;)V", fprops)