Function progress

progress(
io: { isTTY?: boolean; stderr: (s: string) => void },
): { end(final?: string): void; fail(): void; step(next: string): void }
Progress on stderr: a spinner line that updates in a terminal, one line per step otherwise, so agents reading the output get plain text.
Parameters
- io: { isTTY?: boolean; stderr: (s: string) => void }
Returns { end(final?: string): void; fail(): void; step(next: string): void }
- end: function
  - end(final?: string): void
    Marks the current step done, and prints final if given.
    
    Parameters
    
    Optionalfinal: string
    
    Returns void
    
    Defined in src/pai.mts:2806
- fail: function
  - fail(): void
    Marks the current step as the one that failed.
    
    Returns void
    
    Defined in src/pai.mts:2814
- step: function
  - step(next: string): void
    Shows next as the current step, and marks the one before it done.
    
    Parameters
    
    next: string
    
    Returns void
    
    Defined in src/pai.mts:2793
- Defined in src/pai.mts:2780