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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 get_version():
 """ Parses the version out of libjsonnet.h """

    with open(os.path.join(DIR, 'include/libjsonnet.h')) as f:
        for line in f:
            if '#define' in line and 'LIB_JSONNET_VERSION' in line:
                v_code = line.partition('LIB_JSONNET_VERSION')[2].strip('\n "')
                if v_code[0] == "v":
                    v_code = v_code[1:]
                return v_code