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

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Removes leading whitespace from <em>str</em>, returning <tt>nil</tt> if no change was made. See also <tt>String#rstrip!</tt> and <tt>String#strip!</tt>.
- !ruby/struct:SM::Flow::VERB 
  body: "   &quot;  hello  &quot;.lstrip   #=&gt; &quot;hello  &quot;\n   &quot;hello&quot;.lstrip!      #=&gt; nil\n"
full_name: String#lstrip!
is_singleton: false
name: lstrip!
params: |
  str.lstrip!   => self or nil

visibility: public