sunflare.model#

class sunflare.model.ModelProtocol(name, model_info)#

Minimal required protocol for a recognizable device in Redsun.

Exposes the following Bluesky protocols:

Parameters:

  • name (str) – Name of the model. Serves as a unique identifier for the object created from it.

  • model_info (ModelInfoProtocol) – Object implementing ModelInfoProtocol.

abstract read_configuration()#

Read the model configuration.

Provides a dictionary with the current values of the model configuration.

The method can be normal or async.

Returns:

A dictionary with the current values of the model configuration.

Return type:

dict[str, Reading]

abstract describe_configuration()#

Describe the model configuration.

Provides a description of each field of the model configuration.

The method can be normal or async.

Returns:

A dictionary with the description of each field of the model configuration.

Return type:

dict[str, Descriptor]

abstract property name: str#

Model identifier.

Used to populate object_keys in DataKey.

See the following link for more information: https://blueskyproject.io/event-model/main/explanations/event-descriptors.html

abstract property parent: Any | None#

None, or a reference to a parent device.

Used by the RE to stop duplicate stages. In Redsun (for now) should always return None.

abstract property model_info: ModelInfoProtocol#

The associated model information.

It can return a subclass of ModelInfo.

class sunflare.model.Model(name, model_info)#

A boilerplate base class for quick model development.

Users may subclass from this model and provide their custom ModelInfo implementation.

Example usage:

from sunflare.model import Model
from sunflare.config import ModelInfo
from attrs import define


@define
class MyModelInfo(ModelInfo):
    str_param: str
    bool_param: bool
    # any other parameters...


class MyModel(Model[MyModelInfo]):
    def __init__(self, name: str, model_info: MyModelInfo) -> None:
        super().__init__(name, model_info)
        # any other initialization code...
Parameters:

  • name (str) – Name of the model. Serves as a unique identifier for the object created from it.

  • model_info (MI) – Instance of ModelInfo. subclass.

describe_configuration(*, source='model_info')#

Provide a description of the model configuration.

Inspects the local model_info object and returns a descriptor dictionary compatible with the Bluesky event model.

Parameters:

source (str, optional) – Source of the configuration description. Default is model_info.

Returns:

A dictionary with the description of each field of the model configuration.

Return type:

dict[str, DataKey]

read_configuration(*, timestamp=0)#

Provide a description of the model configuration.

Inspects the local model_info object and returns a reading dictionary compatible with the Bluesky event model.

Parameters:

timestamp (float, optional) – Timestamp of the reading (i.e. time.time()). Default is 0.

Returns:

A dictionary with the description of each field of the model configuration.

Return type:

dict[str, Descriptor]

property name: str#

Model identifier.

Used to populate object_keys in DataKey.

See the following link for more information: https://blueskyproject.io/event-model/main/explanations/event-descriptors.html

property model_info: MI#

The associated model information.

It can return a subclass of ModelInfo.

property parent: None#

None, or a reference to a parent device.

Used by the RE to stop duplicate stages. In Redsun (for now) should always return None.

sunflare.model.check_supports(obj, protocol)#

Check that an object supports a protocol

This exists so that multiple protocol checks can be run in a mypy compatible way, e.g.:

triggerable = check_supports(obj, Triggerable)
triggerable.trigger()
readable = check_supports(obj, Readable)
readable.read()
Parameters:

  • obj (T)

  • protocol (type[Any])

Return type:

T

Reading

A dictionary containing the value and timestamp of a piece of scan data

DataKey

Describes the objects in the data property of Event documents