How to use the redux-form.isValid function in redux-form

(state, ownProps) => ({
    isValid: isValid(ownProps.formName)(state),
    isDirty: isDirty(ownProps.formName)(state),
    submitErrors: getFormSubmitErrors(ownProps.formName)(state)
  }),
  {

const mapStateToProps = state => ({
  fieldIds: selectors.qEditor.getFieldIds(state),
  getField: selectors.qEditor.getFieldById(state),
  getLinkableFields: selectors.questionnaire.getLinkableFields(state),
  editing: selectors.qEditor.getEditingField(state),
  section: selectors.qEditor.getSelectedSection(state),
  questionnaire: selectors.qEditor.getEditingQuestionnaire(state),
  submitSucceeded: hasSubmitSucceeded(FORM_NAME)(state),
  isValid: isValid(FORM_NAME)(state),
  isPristine: isPristine(FORM_NAME)(state)
})

(state) => ({
    projectId: activeProjectSelector(state),
    widgetSettings: getFormValues(WIDGET_WIZARD_FORM)(state),
    dirty: isDirty(WIDGET_WIZARD_FORM)(state),
    valid: isValid(WIDGET_WIZARD_FORM)(state),
  }),
  {

function isActiveFormValid(state) {
  const form = getActiveForm(state);

  if (!form) return false;

  return !isPristine(state.externalForms.activeForm, selectReduxFormState)(state) &&
         isValid(state.externalForms.activeForm, selectReduxFormState)(state);
}

const mapStateToProps = (state, ownProps) => ({
  customer: getCustomer(state),
  project: getProject(state),
  total: pricesSelector(state, ownProps).total,
  formData: getFormValues('marketplaceOffering')(state),
  formValid: isValid('marketplaceOffering')(state),
});

const mapStateToProps = (state, ownProps) => {
  const formData: any = getFormValues('marketplaceOffering')(state);
  return {
    formData: formData && formData.attributes || {attributes: {}},
    formValid: isValid('marketplaceOffering')(state),
    customer: getCustomer(state),
    project: getProject(state),
    total: pricesSelector(state, ownProps).total,
  };
};