parameters: (source, filename)
return_statement: return AstBuilder(tokenize.GetTokens(source), filename)
docstring: Utility method that returns an AstBuilder from source code.
  
      Args:
        source: 'C++ source code'
        filename: 'file1'
  
      Returns:
        AstBuilder
docstring_summary: Utility method that returns an AstBuilder from source code.
docstring_tokens: Utility method that returns an AstBuilder from source code .
function: def BuilderFromSource(source, filename):
      """Utility method that returns an AstBuilder from source code.
  
      Args:
        source: 'C++ source code'
        filename: 'file1'
  
      Returns:
        AstBuilder
      """
      return AstBuilder(tokenize.GetTokens(source), filename)
function_tokens: def BuilderFromSource ( source , filename ) : return AstBuilder ( tokenize . GetTokens ( source ) , filename )