Function decodeToolCall

decodeToolCall(instruction: Instruction): ToolCall | null
Decodes one tool call fragment.
Parameters
- instruction: Instruction
  Instruction to decode.
Returns ToolCall | null
The decoded fragment, or null when the instruction is not a tool delta.
Throws
ToolCallError when the payload is present but malformed.
Example
```
for (const instruction of chunk.code) {
  const call = delta.decodeToolCall(instruction);
  if (call?.name) console.log(call.name);
}
```