Fix fal client snippet for LoRAs (#1393)

Fixes
#1347 (comment).

Author: hanouticelina

packages/inference/src/snippets/templates/python/fal_client/textToImage.jinja

@@ -1,11 +1,21 @@
 {% if provider == "fal-ai" %}
 import fal_client
 
+{% if providerInputs.asObj.loras is defined and providerInputs.asObj.loras != none %}
 result = fal_client.subscribe(
     "{{ providerModelId }}",
     arguments={
         "prompt": {{ inputs.asObj.inputs }},
+        "loras":{{ providerInputs.asObj.loras | tojson }},
     },
 )
+{% else %}
+result = fal_client.subscribe(
+    "{{ providerModelId }}",
+    arguments={
+        "prompt": {{ inputs.asObj.inputs }},
+    },
+)
+{% endif %} 
 print(result)
 {% endif %} 

packages/tasks-gen/snippets-fixtures/text-to-image--lora/python/fal_client/0.fal-ai.py

@@ -4,6 +4,8 @@
     "<fal-ai alias for openfree/flux-chatgpt-ghibli-lora>",
     arguments={
         "prompt": "Astronaut riding a horse",
+        "loras":[{"path": "https://huggingface.co/openfree/flux-chatgpt-ghibli-lora/resolve/main/<path to LoRA weights in .safetensors format>", "scale": 1}],
     },
 )
+ 
 print(result)

packages/tasks-gen/snippets-fixtures/text-to-image/python/fal_client/0.fal-ai.py

@@ -6,4 +6,5 @@
         "prompt": "Astronaut riding a horse",
     },
 )
+ 
 print(result)