MRICloudMultidelayCalculateM0
=============================

**Purpose.** Estimate an **M0 map** from **multi-delay** ASL by fitting control
signals across PLDs (and acquisition-dependent offsets).

Inputs
------

- ``derivatives/<sub>/perf/{asl}.nii`` (4D multi-delay)
- ``derivatives/<sub>/perf/r{asl}_ctrl.nii`` (for target geometry)
- ``data_descrip`` timing and acquisition fields (PLDs, slice duration, labeling duration, Look-Locker, etc.)
- TPM file: ``pyasl/tpm/TPM.nii`` for masks

Outputs
-------

- ``M0map.nii`` (float32)
- ``brnmsk_dspl.nii``, ``brnmsk_clcu.nii`` (int16)

Configuration
-------------

- None (model parameters come from helpers and ``data_descrip`` fields).

YAML example
------------

.. code-block:: yaml

    modules:
      - name: MRICloudMultidelayCalculateM0