--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: "[Ruby 1.8.3] Adds header field instead of replace. Second argument <tt>val</tt> must be a String. See also #[]=, #[] and #get_fields."
- !ruby/struct:SM::Flow::VERB 
  body: "  request.add_field 'X-My-Header', 'a'\n  p request['X-My-Header']              #=&gt; &quot;a&quot;\n  p request.get_fields('X-My-Header')   #=&gt; [&quot;a&quot;]\n  request.add_field 'X-My-Header', 'b'\n  p request['X-My-Header']              #=&gt; &quot;a, b&quot;\n  p request.get_fields('X-My-Header')   #=&gt; [&quot;a&quot;, &quot;b&quot;]\n  request.add_field 'X-My-Header', 'c'\n  p request['X-My-Header']              #=&gt; &quot;a, b, c&quot;\n  p request.get_fields('X-My-Header')   #=&gt; [&quot;a&quot;, &quot;b&quot;, &quot;c&quot;]\n"
full_name: Net::HTTPHeader#add_field
is_singleton: false
name: add_field
params: (key, val)
visibility: public