def METHOD_NAME(self):
    """
    Creates a scraper configuration for each instance.
    """
    scrapers = {}
    for config in self.scraper_configs:
        endpoint = config.get('openmetrics_endpoint', '')
        if not isinstance(endpoint, str):
            raise ConfigurationError('The setting `openmetrics_endpoint` must be a string')
        elif not endpoint:
            raise ConfigurationError('The setting `openmetrics_endpoint` is required')
        scrapers[endpoint] = self.create_scraper(config)
    self.scrapers.clear()
    self.scrapers.update(scrapers)