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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 compiler_version():
 """ Return the version of the installed solc. """

    version_info = subprocess.check_output(['solc', '--version'])
    match = re.search(b'^Version: ([0-9a-z.-]+)/', version_info, re.MULTILINE)

    if match:
        return match.group(1)