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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(aadb: str):
 """ Retrieves a value from config """

    if (aadb):
        cfg = Config()
        value = cfg.get(ConfigKeys.asset_allocation_database_path)
        click.echo(value)
    
    if not aadb:
        click.echo("Use --help for more information.")