Enum ContentBlock 

pub enum ContentBlock {
    Text {
        text: String,
    },
    Thinking {
        thinking: String,
        signature: Option<String>,
        redacted: bool,
    },
    Image {
        data: String,
        mime_type: String,
    },
}

One block of structured Message content.

Serialized as an internally tagged object ({"type": "text", ...}) so block arrays in preset JSON stay self-describing.

Variants

Text

Plain text content.

Fields

text: String

The text.

Thinking

Reasoning/thinking trace from an extended thinking model.

Fields

thinking: String

The thinking text. For redacted blocks this holds the provider’s opaque encrypted payload verbatim.

signature: Option<String>

Provider signature that must be replayed together with the thinking text when re-sending assistant history (Claude requires it for extended thinking + tool use continuations).

redacted: bool

True when the provider returned an encrypted redacted_thinking payload instead of readable text.

Image

Inline image content (requires “image” feature).

Fields

data: String

Base64-encoded image data.

mime_type: String

MIME type of the image, e.g. “image/png”.

Trait Implementations

impl Clone for ContentBlock

fn clone(&self) -> ContentBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentBlock

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ContentBlock

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ContentBlock

fn eq(&self, other: &ContentBlock) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ContentBlock

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ContentBlock