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v1

Scan filter step v1.

Module​

Submodules​

Functions​

task_fn​

def task_fn(    datasource: BaseSource,    config: ScanFilterConfig,    filenames: list[str],) ‑> ScanFilterResult:

Filter the input file list down to the latest scan per patient.

Arguments

  • datasource: The datasource providing per-file metadata (date and patient identifier columns) used by the "latest" strategy.
  • config: Scan filter configuration.
  • filenames: List of file IDs to filter (typically wired from $file_metadata.cache).

Returns ScanFilterResult with the filtered filenames.

An invalid strategy is rejected up-front by ScanFilterConfig (pydantic), so the strategy here is always a valid ScanFilterStrategy.

Classes​

Config​

class Config(**data: Any):

Config for the scan filter step.

All fields are required — defaults are provided by the YAML template.

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

Variables​

  • static date_column : str
  • static id_columns : list[str]
  • static model_config
  • static num_latest : int

Result​

class Result(**data: Any):

Result of a scan filter task.

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

Variables​

  • static filenames : list[str]
  • static model_config