pub fn content_type(&self) -> Option<String> {
        for header in self.headers.clone() {
            if header.name.to_lowercase().as_str() == "content-type" {
                return Some(header.value);
            }
        }
        None
    }
///
/// Return optional Content-type header value
///
Return optional Content-type header value
Return optional Content - type header value
pub fn content_type(&self) -> Option<String> {
        for header in self.headers.clone() {
            if header.name.to_lowercase().as_str() == "content-type" {
                return Some(header.value);
            }
        }
        None
    }
pub fn content_type ( & self ) -> Option < String > { for header in self . headers . clone ( ) { if header . name . to_lowercase ( ) . as_str ( ) == " " { return Some ( header . value ) ; } } None }
Return optional Content-type header value
Return optional Content - type header value
&self
&self