Struct SchemaField 

pub struct SchemaField {

    pub name: Option<String>,
    pub label: Option<String>,
    pub description: Option<String>,
    pub required: bool,
    pub default: Option<Parameter>,
    pub field_type: Option<SchemaFieldType>,
    pub min: Option<f64>,
    pub max: Option<f64>,
    pub step: Option<f64>,
    pub options: Vec<SchemaOption>,
    pub children: Vec<SchemaField>,
    pub is_dropdown: bool,
    pub multi_select: bool,
    pub is_multi_line: bool,
    pub hidden: bool,
    pub numeric_only: bool,
    pub enable_tags_selection: bool,
    pub enable_annotation_set_selection: bool,
    pub values: Option<Vec<Parameter>>,
}

A single field descriptor from a trainer or validator parameter schema.

Schemas describe the hyperparameters a trainer/validator accepts — the same descriptors the Studio UI renders as dynamic forms. Use them to discover parameter names, defaults, and valid ranges before launching a session with Client::start_training_session.

Deserialization is tolerant: unknown JSON keys are ignored and most fields are optional, so schema evolution on the server does not break this client.

Fields

name: Option<String>

Parameter name — the key to use in the launch params map.

label: Option<String>

Human-readable label; non-string labels are coerced to strings.

description: Option<String>

Longer description of the parameter.

required: bool

Whether a value is required to launch.

default: Option<Parameter>

Default value applied when the parameter is omitted.

field_type: Option<SchemaFieldType>

The kind of input this field describes.

min: Option<f64>

Minimum value (numeric fields).

max: Option<f64>

Maximum value (numeric fields).

step: Option<f64>

Step size (numeric fields).

options: Vec<SchemaOption>

Selectable options (select fields).

children: Vec<SchemaField>

Nested fields (group fields, or bool fields that reveal sub-parameters when enabled).

is_dropdown: bool

Render the select as a dropdown.

multi_select: bool

Allow selecting multiple options.

is_multi_line: bool

Render the text input as multi-line.

hidden: bool

Mask the text input (passwords).

numeric_only: bool

Restrict text input to numeric characters.

enable_tags_selection: bool

Dataset fields: enable dataset tag selection.

enable_annotation_set_selection: bool

Dataset fields: enable annotation set selection.

values: Option<Vec<Parameter>>

Slider fields: number of slider handles (1 = value, 2 = range).

Trait Implementations

impl Clone for SchemaField

fn clone(&self) -> SchemaField

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchemaField

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SchemaField

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SchemaField

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

where __S: Serializer,

Serialize this value into the given Serde serializer.