Warning: Deprecated: Option '--flash_size' is deprecated. Use '--flash-size' instead.
Warning: Deprecated: Option '--flash_mode' is deprecated. Use '--flash-mode' instead.
Warning: Deprecated: Option '--flash_freq' is deprecated. Use '--flash-freq' instead.
Warning: Deprecated: Command 'sign_data' is deprecated. Use 'sign-data' instead.
Warning: Deprecated: Command 'extract_public_key' is deprecated. Use 'extract-public-key' instead.