backend/keyvault.py [24:37]:
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                value = retrieved_secret.value
        return value    
    except KeyError:
        logging.info("Environment variable AZURE_KEY_VAULT_NAME not found.")
        return None
    except ClientAuthenticationError:
        logging.info("Authentication failed. Please check your credentials.")
        return None
    except ResourceNotFoundError:
        logging.info(f"Secret '{secretName}' not found in the Key Vault.")
        return None
    except Exception as e:
        logging.info(f"An unexpected error occurred: {e}")
        return None
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