Constant STATUS_OPTIONS_UPDATE 

pub const STATUS_OPTIONS_UPDATE: &str = r#"mutation($input:UpdateProjectV2FieldInput!){updateProjectV2Field(input:$input){projectV2Field{... on ProjectV2SingleSelectField{id options{id name color description}}}}}"#;

Replaces a single-select field’s options. Only the guarded status-options operation may use this document, because GitHub treats the input as the complete option list.