black:tldr:496f2

The command black --quiet ${filename_or_directory} is used to execute the Black code formatter on a specific file or directory.

• black is the name of the Black tool, which is a widely used Python code formatter. It automatically formats Python code according to a set of style guidelines.
• --quiet is an optional flag that makes the command run silently without displaying any output or prompts. It suppresses any informational or warning messages that Black might usually show during the formatting process.
• ${filename_or_directory} is a placeholder indicating that you need to replace it with the actual name of the file or directory you want to format. It can be either a single Python file or a directory containing multiple files. Black will recursively format all Python files found within the specified directory.

To use this command, you would need to have Black installed on your system and accessible from your command-line interface.