syntax_data: {"ast_node_type":"function","tokens":[{"end":78,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn from_json(json: &str) -> Result<(Target, TargetWarnings), String> {
context_before:     /// Loads a target descriptor from a JSON object.
context_after:         let json_deserializer = &mut serde_json::Deserializer::from_str(json);