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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_filename(disposition):
 """Parse Content-Disposition header to pull out the filename bit. See: http://tools.ietf.org/html/rfc2616#section-19.5.1 """

    if disposition:
        params = [param.strip() for param in disposition.split(';')[1:]]
        for param in params:
            if '=' in param:
                name, value = param.split('=', 1)
                if name == 'filename':
                    return value.strip('"')