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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 fetch_pcr(*args, **kwargs):
 """Wrapper for fetch to automatically parse results from the PCR API."""

    # Load user's token from `PCR_AUTH_TOKEN`, use public token as default if missing
    kwargs['token'] = os.getenv("PCR_AUTH_TOKEN", "public")
    return fetch(DOMAIN, *args, **kwargs)['result']