--- !ruby/object:RI::MethodDescription 
aliases: 
- !ruby/object:RI::AliasName 
  name: content_type=
- !ruby/object:RI::AliasName 
  name: content_type=
block_params: 
comment: 
full_name: TMail::Mail#set_content_type
is_singleton: false
name: set_content_type
params: ( str, sub = nil, param = nil )
visibility: public
