code: def eval_variable(name, **kwargs):
      
      with injectables(**kwargs):
          vars = _collect_variables([name], [name])
          return vars[name]
docs: Execute a single variable function registered with Orca
      and return the result. Any keyword arguments are temporarily set
      as injectables. This gives the value as would be injected into a function.
  
      Parameters
      ----------
      name : str
          Name of variable to evaluate.
          Use variable expressions to specify columns.
  
      Returns
      -------
      object
          For injectables and columns this directly returns whatever
          object is returned by the registered function.
          For tables this returns a DataFrameWrapper as if the table
          had been injected into a function.