Function findThinkingBlocks

findThinkingBlocks(program: Program): ThinkingSpan[]
Locates every thinking block in a program.
Parameters
- program: Program
  Program to scan.
Returns ThinkingSpan[]
Thinking spans in program order.
Example
```
for (const block of findThinkingBlocks(response)) {
  console.log(extractThinkingText(response, block));
}
```