Mini Shell

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

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Returns the first element, or the first <tt>n</tt> elements, of the enumerable. If the enumerable is empty, the first form returns <tt>nil</tt>, and the second form returns an empty array.
full_name: Enumerable#first
is_singleton: false
name: first
params: |
  enum.first      -> obj or nil
  enum.first(n)   -> an_array

visibility: public