39                     for (key, value) in rest {  in fmt()
40                         write!(formatter, "\"{}\": {},", key, value)?;  in fmt()
59     fn push(&mut self, key: &str, value: T);  in push()
63     fn push(&mut self, key: &str, value: bool) {  in push()
64         self.0.push((key.to_string(), Value::Boolean(value)));  in push()
69     fn push(&mut self, key: &str, value: i32) {  in push()
70         self.0.push((key.to_string(), Value::Number(value)));  in push()
75     fn push(&mut self, key: &str, value: String) {  in push()
76         self.0.push((key.to_string(), Value::String(value)));  in push()
81     fn push(&mut self, key: &str, value: &str) {  in push()
82         self.push(key, value.to_string());  in push()
87     fn push(&mut self, key: &str, value: Object) {  in push()
88         self.0.push((key.to_string(), Value::Object(value)));  in push()
97             for (key, value) in rest {  in fmt()
98                 write!(formatter, "    \"{}\": {},\n", key, value)?;  in fmt()
128             let (key, value) = line.split_once('=').expect("Missing `=` in line.");  in from_stdin()
129             result.insert(key.to_string(), value.trim_end_matches('\n').to_string());  in from_stdin()