title: Calling methods in pharo smalltalk
body: <p>I'm trying to call a function from another class (Binario) but it says it's not implemented.</p>
  
  <p>This is the code for the method in Binario class:</p>
  
  <pre><code>  genlista
    ^ (1 to: 30) collect: [ :i | 2 atRandom - 1 ]
  </code></pre>
  
  <p>And this is the code for the other class method:</p>
  
  <pre><code> ListadelistasBin
    | bin |
    bin := Binario new.
    ^ (1 to: 30) collect: [ :i | bin genlista ]
  </code></pre>
  
  <p>Please, help me :(</p>