prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  IndexError in _wrap_get_create
  ### Which version of dd-trace-py are you using? 0.50.3
  
  ### Which version of pip are you using? 20.3.3
  
  ### Which version of the libraries are you using? `dogpile.cache==0.7.1`
  
  ### How can we reproduce your problem?
  
  Install redis if needed (on macOS):
  ```
  brew install redis
  brew services start redis
  ```
  
  Create  a dogpile region cache:
  ```
  from dogpile.cache import make_region
  region = make_region("foo",
              key_mangler=lambda key: '{}:{}:{}'.format("foo", "env", key)) \
              .configure('dogpile.cache.redis', arguments=dict(url="redis://localhost:6379")
  ```
  
  Call `get_or_create` using only kwargs:
  
  ```
          return token_cache.get_or_create(
              key="cache_key", creator=lambda: make_value(foo, bar, buzz))
  
  ```
  
  Invoke your script via ddtrace-run:
  
  ```
  ddtrace-run python3 test_ddtrace_and_dogpile.py
  ```
  
  ### What is the result that you get?
  
  ```
  [ERROR] IndexError: tuple index out of range
  Traceback (most recent call last):
    File "/var/lang/lib/python3.8/site-packages/datadog_lambda/wrapper.py", line 54, in __call__
      return self.func(*args, **kwargs)
    File "/var/lang/lib/python3.8/site-packages/datadog_lambda/wrapper.py", line 124, in __call__
      self.response = self.func(event, context, **kwargs)
    File "/var/task/handler.py", line 105, in execute_task
      executor = executor_getter(event)
    File "/var/task/handler.py", line 43, in get_step_executor
      executor = ETLStepExecutor(Worker.lambda_instance.value, **get_parameters_for_inference_pipeline(event))
    File "/var/lang/lib/python3.8/site-packages/sondes/containers/executors/base.py", line 24, in __init__
      client = get_third_party_client(kwargs["third_party_module_name"])(
    File "/var/task/caiso/client.py", line 17, in __init__
      self.api = get_caiso_api_client(
    File "/var/task/caiso/utility/caiso_api_client.py", line 40, in get_caiso_api_client
      token = get_login_token(service_url, username, password, worker, environment, cache_host)
    File "/var/task/caiso/utility/caiso_api_client.py", line 32, in get_login_token
      return token_cache.get_or_create(
    File "/var/lang/lib/python3.8/site-packages/ddtrace/contrib/dogpile_cache/region.py", line 14, in _wrap_get_create
      key = args[0]
  ```
  
  ### What is the result that you expected?
  No error 
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `ddtrace/contrib/dogpile_cache/region.py`
  Content:
  ```
  1 import dogpile
  2 
  3 from ddtrace.ext import SpanTypes
  4 
  5 from ...constants import SPAN_MEASURED_KEY
  6 from ...pin import Pin
  7 
  8 
  9 def _wrap_get_create(func, instance, args, kwargs):
  10     pin = Pin.get_from(dogpile.cache)
  11     if not pin or not pin.enabled():
  12         return func(*args, **kwargs)
  13 
  14     key = args[0]
  15     with pin.tracer.trace("dogpile.cache", resource="get_or_create", span_type=SpanTypes.CACHE) as span:
  16         span.set_tag(SPAN_MEASURED_KEY)
  17         span.set_tag("key", key)
  18         span.set_tag("region", instance.name)
  19         span.set_tag("backend", instance.actual_backend.__class__.__name__)
  20         return func(*args, **kwargs)
  21 
  22 
  23 def _wrap_get_create_multi(func, instance, args, kwargs):
  24     pin = Pin.get_from(dogpile.cache)
  25     if not pin or not pin.enabled():
  26         return func(*args, **kwargs)
  27 
  28     keys = args[0]
  29     with pin.tracer.trace("dogpile.cache", resource="get_or_create_multi", span_type="cache") as span:
  30         span.set_tag(SPAN_MEASURED_KEY)
  31         span.set_tag("keys", keys)
  32         span.set_tag("region", instance.name)
  33         span.set_tag("backend", instance.actual_backend.__class__.__name__)
  34         return func(*args, **kwargs)
  35
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/ddtrace/contrib/dogpile_cache/region.py b/ddtrace/contrib/dogpile_cache/region.py
  --- a/ddtrace/contrib/dogpile_cache/region.py
  +++ b/ddtrace/contrib/dogpile_cache/region.py
  @@ -4,6 +4,7 @@
   
   from ...constants import SPAN_MEASURED_KEY
   from ...pin import Pin
  +from ...utils import get_argument_value
   
   
   def _wrap_get_create(func, instance, args, kwargs):
  @@ -11,7 +12,7 @@
       if not pin or not pin.enabled():
           return func(*args, **kwargs)
   
  -    key = args[0]
  +    key = get_argument_value(args, kwargs, 0, "key")
       with pin.tracer.trace("dogpile.cache", resource="get_or_create", span_type=SpanTypes.CACHE) as span:
           span.set_tag(SPAN_MEASURED_KEY)
           span.set_tag("key", key)
  @@ -25,7 +26,7 @@
       if not pin or not pin.enabled():
           return func(*args, **kwargs)
   
  -    keys = args[0]
  +    keys = get_argument_value(args, kwargs, 0, "keys")
       with pin.tracer.trace("dogpile.cache", resource="get_or_create_multi", span_type="cache") as span:
           span.set_tag(SPAN_MEASURED_KEY)
           span.set_tag("keys", keys)
  
verification_info: {"golden_diff": "diff --git a/ddtrace/contrib/dogpile_cache/region.py b/ddtrace/contrib/dogpile_cache/region.py\n--- a/ddtrace/contrib/dogpile_cache/region.py\n+++ b/ddtrace/contrib/dogpile_cache/region.py\n@@ -4,6 +4,7 @@\n \n from ...constants import SPAN_MEASURED_KEY\n from ...pin import Pin\n+from ...utils import get_argument_value\n \n \n def _wrap_get_create(func, instance, args, kwargs):\n@@ -11,7 +12,7 @@\n     if not pin or not pin.enabled():\n         return func(*args, **kwargs)\n \n-    key = args[0]\n+    key = get_argument_value(args, kwargs, 0, \"key\")\n     with pin.tracer.trace(\"dogpile.cache\", resource=\"get_or_create\", span_type=SpanTypes.CACHE) as span:\n         span.set_tag(SPAN_MEASURED_KEY)\n         span.set_tag(\"key\", key)\n@@ -25,7 +26,7 @@\n     if not pin or not pin.enabled():\n         return func(*args, **kwargs)\n \n-    keys = args[0]\n+    keys = get_argument_value(args, kwargs, 0, \"keys\")\n     with pin.tracer.trace(\"dogpile.cache\", resource=\"get_or_create_multi\", span_type=\"cache\") as span:\n         span.set_tag(SPAN_MEASURED_KEY)\n         span.set_tag(\"keys\", keys)\n", "issue": "IndexError in _wrap_get_create\n### Which version of dd-trace-py are you using? 0.50.3\r\n\r\n### Which version of pip are you using? 20.3.3\r\n\r\n### Which version of the libraries are you using? `dogpile.cache==0.7.1`\r\n\r\n### How can we reproduce your problem?\r\n\r\nInstall redis if needed (on macOS):\r\n```\r\nbrew install redis\r\nbrew services start redis\r\n```\r\n\r\nCreate  a dogpile region cache:\r\n```\r\nfrom dogpile.cache import make_region\r\nregion = make_region(\"foo\",\r\n            key_mangler=lambda key: '{}:{}:{}'.format(\"foo\", \"env\", key)) \\\r\n            .configure('dogpile.cache.redis', arguments=dict(url=\"redis://localhost:6379\")\r\n```\r\n\r\nCall `get_or_create` using only kwargs:\r\n\r\n```\r\n        return token_cache.get_or_create(\r\n            key=\"cache_key\", creator=lambda: make_value(foo, bar, buzz))\r\n\r\n```\r\n\r\nInvoke your script via ddtrace-run:\r\n\r\n```\r\nddtrace-run python3 test_ddtrace_and_dogpile.py\r\n```\r\n\r\n### What is the result that you get?\r\n\r\n```\r\n[ERROR] IndexError: tuple index out of range\r\nTraceback (most recent call last):\r\n  File \"/var/lang/lib/python3.8/site-packages/datadog_lambda/wrapper.py\", line 54, in __call__\r\n    return self.func(*args, **kwargs)\r\n  File \"/var/lang/lib/python3.8/site-packages/datadog_lambda/wrapper.py\", line 124, in __call__\r\n    self.response = self.func(event, context, **kwargs)\r\n  File \"/var/task/handler.py\", line 105, in execute_task\r\n    executor = executor_getter(event)\r\n  File \"/var/task/handler.py\", line 43, in get_step_executor\r\n    executor = ETLStepExecutor(Worker.lambda_instance.value, **get_parameters_for_inference_pipeline(event))\r\n  File \"/var/lang/lib/python3.8/site-packages/sondes/containers/executors/base.py\", line 24, in __init__\r\n    client = get_third_party_client(kwargs[\"third_party_module_name\"])(\r\n  File \"/var/task/caiso/client.py\", line 17, in __init__\r\n    self.api = get_caiso_api_client(\r\n  File \"/var/task/caiso/utility/caiso_api_client.py\", line 40, in get_caiso_api_client\r\n    token = get_login_token(service_url, username, password, worker, environment, cache_host)\r\n  File \"/var/task/caiso/utility/caiso_api_client.py\", line 32, in get_login_token\r\n    return token_cache.get_or_create(\r\n  File \"/var/lang/lib/python3.8/site-packages/ddtrace/contrib/dogpile_cache/region.py\", line 14, in _wrap_get_create\r\n    key = args[0]\r\n```\r\n\r\n### What is the result that you expected?\r\nNo error \n", "before_files": [{"content": "import dogpile\n\nfrom ddtrace.ext import SpanTypes\n\nfrom ...constants import SPAN_MEASURED_KEY\nfrom ...pin import Pin\n\n\ndef _wrap_get_create(func, instance, args, kwargs):\n    pin = Pin.get_from(dogpile.cache)\n    if not pin or not pin.enabled():\n        return func(*args, **kwargs)\n\n    key = args[0]\n    with pin.tracer.trace(\"dogpile.cache\", resource=\"get_or_create\", span_type=SpanTypes.CACHE) as span:\n        span.set_tag(SPAN_MEASURED_KEY)\n        span.set_tag(\"key\", key)\n        span.set_tag(\"region\", instance.name)\n        span.set_tag(\"backend\", instance.actual_backend.__class__.__name__)\n        return func(*args, **kwargs)\n\n\ndef _wrap_get_create_multi(func, instance, args, kwargs):\n    pin = Pin.get_from(dogpile.cache)\n    if not pin or not pin.enabled():\n        return func(*args, **kwargs)\n\n    keys = args[0]\n    with pin.tracer.trace(\"dogpile.cache\", resource=\"get_or_create_multi\", span_type=\"cache\") as span:\n        span.set_tag(SPAN_MEASURED_KEY)\n        span.set_tag(\"keys\", keys)\n        span.set_tag(\"region\", instance.name)\n        span.set_tag(\"backend\", instance.actual_backend.__class__.__name__)\n        return func(*args, **kwargs)\n", "path": "ddtrace/contrib/dogpile_cache/region.py"}], "after_files": [{"content": "import dogpile\n\nfrom ddtrace.ext import SpanTypes\n\nfrom ...constants import SPAN_MEASURED_KEY\nfrom ...pin import Pin\nfrom ...utils import get_argument_value\n\n\ndef _wrap_get_create(func, instance, args, kwargs):\n    pin = Pin.get_from(dogpile.cache)\n    if not pin or not pin.enabled():\n        return func(*args, **kwargs)\n\n    key = get_argument_value(args, kwargs, 0, \"key\")\n    with pin.tracer.trace(\"dogpile.cache\", resource=\"get_or_create\", span_type=SpanTypes.CACHE) as span:\n        span.set_tag(SPAN_MEASURED_KEY)\n        span.set_tag(\"key\", key)\n        span.set_tag(\"region\", instance.name)\n        span.set_tag(\"backend\", instance.actual_backend.__class__.__name__)\n        return func(*args, **kwargs)\n\n\ndef _wrap_get_create_multi(func, instance, args, kwargs):\n    pin = Pin.get_from(dogpile.cache)\n    if not pin or not pin.enabled():\n        return func(*args, **kwargs)\n\n    keys = get_argument_value(args, kwargs, 0, \"keys\")\n    with pin.tracer.trace(\"dogpile.cache\", resource=\"get_or_create_multi\", span_type=\"cache\") as span:\n        span.set_tag(SPAN_MEASURED_KEY)\n        span.set_tag(\"keys\", keys)\n        span.set_tag(\"region\", instance.name)\n        span.set_tag(\"backend\", instance.actual_backend.__class__.__name__)\n        return func(*args, **kwargs)\n", "path": "ddtrace/contrib/dogpile_cache/region.py"}]}