ReadResult

class lsst.images.serialization.ReadResult(deserialized: T, metadata: dict[str, MetadataValue], butler_info: ButlerInfo | None)

Bases: NamedTuple, Generic

A struct that can be used to return both a deserialized object and metadata associated with it, even when the in-memory type cannot hold metadata.

Attributes Summary

butler_info	Butler provenance information for the dataset this file backs.
deserialized	The deserialized object itself.
metadata	Additional flexible metadata stored with the object.

Methods Summary

count(value, /)	Return number of occurrences of value.
index(value[, start, stop])	Return first index of value.

Attributes Documentation

butler_info: ButlerInfo | None

Butler provenance information for the dataset this file backs.

deserialized: T

The deserialized object itself.

metadata: dict[str, MetadataValue]

Additional flexible metadata stored with the object.

Methods Documentation

count(value, /)

Return number of occurrences of value.

index(value, start=0, stop=9223372036854775807, /)

Return first index of value.

Raises ValueError if the value is not present.