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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 create(cls, configfile):
 """Create a configuration dictionary from a yaml config file. This function will first populate the dictionary with defaults taken from pre-defined configuration files. The configuration dictionary is then updated with the user-defined configuration file. Any settings defined by the user will take precedence over the default settings."""


        # populate config dictionary with an initial set of values
        # config_logging = ConfigManager.load('logging.yaml')

        config = {}
        if config['fileio']['outdir'] is None:
            config['fileio']['outdir'] = os.path.abspath(
                os.path.dirname(configfile))

        user_config = cls.load(configfile)
        config = utils.merge_dict(config, user_config, True)

        config['fileio']['outdir'] = os.path.abspath(
            config['fileio']['outdir'])

        return config