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

block_params: 
comment: 
- !ruby/struct:RDoc::Markup::Flow::P 
  :body: Returns the Encoding object that represents the encoding of the file. If strio is write mode and no encoding is specified, returns <tt>nil</tt>.
full_name: StringIO#external_encoding
is_singleton: false
name: external_encoding
params: |
  strio.external_encoding   => encoding

visibility: public
