Struct TensorInfo 

pub struct TensorInfo {
    pub name: String,
    pub dtype: String,
    pub shape: Vec<usize>,
    pub data_offsets: (u64, u64),
}

Metadata for a single tensor from a .safetensors header.

This is hf-fetch-model’s own type — lightweight, no quantization logic. Consumers (e.g., anamnesis) map this into their own richer types.

Fields

name: String

Tensor name (e.g., "model.layers.0.self_attn.q_proj.weight").

dtype: String

Element dtype string as it appears in the header (e.g., "F8_E4M3", "BF16").

shape: Vec<usize>

Tensor shape (e.g., [7168, 7168]).

data_offsets: (u64, u64)

Byte offset range [start, end) within the data section of the file.

Implementations

impl TensorInfo

pub fn num_elements(&self) -> u64

Total number of elements (product of shape dimensions).

Returns 1 for a scalar (empty shape).

pub const fn byte_len(&self) -> u64

Byte length of the tensor data (end - start).

pub fn dtype_bytes(&self) -> Option<usize>

Bytes per element for the tensor’s dtype, if recognized.

Returns None for unknown dtype strings. Recognized dtypes:

Dtype string	Bytes	Notes
"BOOL"	1
"U8", "I8"	1
"F8_E4M3", "F8_E5M2"	1	FP8 variants
"U16", "I16", "F16", "BF16"	2
"U32", "I32", "F32"	4
"U64", "I64", "F64"	8

Trait Implementations

impl Clone for TensorInfo

fn clone(&self) -> TensorInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TensorInfo

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

Formats the value using the given formatter.

impl Serialize for TensorInfo

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

where __S: Serializer,

Serialize this value into the given Serde serializer.