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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 write_to(self, f):
 """Writes this header to a file, in the format specified by WARC. """

        f.write(self.version + "\r\n")
        for name, value in self.items():
            name = name.title()
            # Use standard forms for commonly used patterns
            name = name.replace("Warc-", "WARC-").replace("-Ip-", "-IP-").replace("-Id", "-ID").replace("-Uri", "-URI")
            f.write(name)
            f.write(": ")
            f.write(value)
            f.write("\r\n")
        
        # Header ends with an extra CRLF
        f.write("\r\n")