code: func toPythonType(t string) *pythonType {
  	tip, ok := typeMap[t]
  	if !ok {
  		return nil
  	}
  	pt := pythonType{
  		name: tip,
  	}
  
  	switch t {
  	case "datetime":
  		pt.importModule = "datetime"
  		pt.importName = "datetime"
  	case "uuid":
  		pt.importModule = "uuid"
  		pt.importName = "UUID"
  	case "string":
  		pt.importModule = "six"
  		pt.importName = "string_types"
  	}
  	return &pt
  }
docs: // convert raml type to python type
  // also returns the needed import