// PARENT

const query = graphql.experimental`
  query MyRootComponentQuery($employeeId: String!, $includeOvertime: Boolean) {
    employee(id: $employeeId) {
      fullName
      ...MyFragmentComponent_employee @arguments(includeOvertime: $includeOvertime)
    }
  }
`

// CHILD

const fragments = {
  employee: graphql.experimental`
    fragment MyFragmentComponent_employee on Employee
      @argumentDefinitions(includeOvertime: { type: "Boolean", defaultValue: false }) {
        hoursWorked(includeOvertime: $includeOvertime)
        dob
        fullName
        id
    }
  `,
}