Separate llama generator class src file into method files

pipeline/src/data_generation/llama/set_sampling_options.cpp

@@ -0,0 +1,26 @@
+#include <stdexcept>
+
+#include "llama.h"
+
+#include "data_generation/llama_generator.h"
+
+void LlamaGenerator::SetSamplingOptions(float temperature, float top_p,
+                                        int seed) {
+  if (temperature < 0.0f) {
+    throw std::runtime_error(
+        "LlamaGenerator: sampling temperature must be >= 0");
+  }
+  if (!(top_p > 0.0f && top_p <= 1.0f)) {
+    throw std::runtime_error(
+        "LlamaGenerator: sampling top-p must be in (0, 1]");
+  }
+  if (seed < -1) {
+    throw std::runtime_error(
+        "LlamaGenerator: seed must be >= 0, or -1 for random");
+  }
+
+  sampling_temperature_ = temperature;
+  sampling_top_p_ = top_p;
+  sampling_seed_ = (seed < 0) ? static_cast<uint32_t>(LLAMA_DEFAULT_SEED)
+                              : static_cast<uint32_t>(seed);
+}