Struct StreamChoice 

pub struct StreamChoice {
    pub index: Option<i32>,
    pub delta: Option<Delta>,
    pub finish_reason: Option<String>,
}

Represents a single choice within a streaming response chunk.

Each choice contains a delta with incremental content updates and metadata about the generation process.

Fields

• index - Position of this choice in the results array
• delta - Partial content update for this choice
• finish_reason - Reason why generation stopped (on final chunk)

Fields

index: Option<i32>

Index position of this choice in the results array.

delta: Option<Delta>

Delta payload containing partial content updates.

This field contains the incremental content that should be appended to the accumulated response.

finish_reason: Option<String>

Reason why the generation process finished.

This field typically appears only on the final chunk of a choice, indicating why generation stopped (e.g., “stop”, “length”, etc.).

Trait Implementations

impl Clone for StreamChoice

fn clone(&self) -> StreamChoice

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StreamChoice

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StreamChoice

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StreamChoice

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.