title: Robot Framework how to call keyword with variable library name
body: <p>I have a 2 similar Remote Libraries with same keywords.</p>
  
  <pre><code>Library    Remote    172.18.92.194:50000    WITH NAME Client1
  Library    Remote    172.18.92.194:50000    WITH NAME Client2
  </code></pre>
  
  <p>and i wish to create test case, which be run keyword from this libraries
  Something like that.</p>
  
  <pre><code>Connect to FTP server active mode
  [Arguments]    ${Client}
  ${Client}.ftp connect active mode     host    user    password
  </code></pre>
  
  <p>The problem is that RF is not parsing the contents of the variable in the call of keywords with the syntax library name.keyword</p>