No LambdaTask builder class — TaskType.LAMBDA exists in enum but is unusable

[nthmost-orkes]

Summary

Tested against: Conductor OSS 3.32.0-rc.9

TaskType.LAMBDA is present in the SDK's enum but there is no LambdaTask
builder class. Users cannot construct a LAMBDA task using the Python SDK — they
must fall back to raw dicts.

Details

from conductor.client.workflow.task.task_type import TaskType
print(TaskType.LAMBDA)   # "LAMBDA" — exists in enum

from conductor.client.workflow.task.lambda_task import LambdaTask
# ImportError: No module named 'conductor.client.workflow.task.lambda_task'

The server supports LAMBDA tasks correctly (confirmed at runtime — see below).
The gap is entirely on the SDK side.

Server-side LAMBDA inputParameters

{
  "type": "LAMBDA",
  "inputParameters": {
    "scriptExpression": "(function(){ return {out: $.x + 1}; })()",
    "x": "${workflow.input.x}"
  }
}

Suggested fix

Add src/conductor/client/workflow/task/lambda_task.py:

class LambdaTask(TaskInterface):
    def __init__(self, task_ref_name: str, script: str,
                 bindings: Optional[Dict[str, str]] = None):
        super().__init__(task_ref_name, TaskType.LAMBDA,
                         input_parameters={"scriptExpression": script})
        if bindings:
            self.input_parameters.update(bindings)

Verified against

Conductor server 3.32.0-rc.9. A raw-dict LAMBDA workflow registered and
ran to COMPLETED on the server. Only the SDK builder is missing.