Command-line input utilities.
The text to use when indicating whether an item is selected.
Print a question, in bold, without creating a new line.
Ask the user to choose exactly one option from a list.
Ask the user to enter some text through their editor.
Print an error message, with a newline.
Ask for a password (the password will not be visible).
Print a message of success, with a newline.
Ask for a line of text.
Ask a yes-or-no question.