Struct ToolCall 

pub struct ToolCall {
    pub id: String,
    pub name: String,
    pub arguments: String,
}

A tool invocation the model wants the host to perform.

Why: the streaming chat API emits tool_calls in fragments — first an id + function.name, then a string of function.arguments deltas. We accumulate fragments and surface one fully-formed ToolCall per invocation to the caller. What: id is the upstream’s call id (echoed back in subsequent role:"tool" messages); name is the function name; arguments is a JSON string (NOT a parsed value — many models emit malformed JSON and callers want the raw text for error reporting / repair). Test: accumulates_streamed_tool_call_fragments.

Fields

id: String

name: String

arguments: String

Trait Implementations

impl Clone for ToolCall

fn clone(&self) -> ToolCall

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolCall

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ToolCall

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ToolCall

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ToolCall

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ToolCall

impl StructuralPartialEq for ToolCall