PromptSnapshot class

An immutable record of one rendered prompt and the sampling configuration it was generated with.

text is the fully rendered, wire-format prompt — for the Gemma format it already contains the system instructions, tool declarations, and message history, so it answers "what is the model provided with" on its own. The sampling fields are the values actually passed to generate, after any per-request ChatOptions overrides were applied.

Annotations

• @immutable

Constructors

PromptSnapshot({required String text, required List<String> stopSequences, required int maxTokens, required double temperature, required int? topK, required double? topP, required int? seed, required int imageCount, required int contextSize, required DateTime capturedAt})

const

Properties

capturedAt → DateTime

When the snapshot was captured.

final

contextSize → int

The model's context window in tokens, used to gauge how full the context is from an estimated count of text.

final

hashCode → int

The hash code for this object.

no setter, inherited

imageCount → int

Number of image attachments sent with this prompt.

final

maxTokens → int

Resolved sampling values actually sent to generate.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

seed → int?

final

stopSequences → List<String>

Stop sequences passed alongside the prompt.

final

temperature → double

final

text → String

The rendered wire-format prompt handed to the model.

final

topK → int?

final

topP → double?

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited