"Content-Type" header or null if hdrs does not contain that header or it cannot be parsed (in which case *params will be unchanged).
MessageHeaders.getContentType
string getContentType(out string[string] params)Looks up the "Content-Type" header in hdrs, parses it, and returns its value in content_type and params.
params can be null if you are only interested in the content type itself.
Parameters
params | return location for the Content-Type parameters (eg, "charset"), or null |
Returns
a string with the value of the