I am not using React's .defaultProps system and instead relying on spreading my default props into my provided props:

type PropTypes = {
  /** My property desc */
  someProp?: boolean
}

const defaultProps = {
  someProp: true
}

const MyComponent = (incomingProps: PropTypes) => {
  const props = {
    ...defaultProps,
    ...incomingProps
  }

  return props.someProp ? <div /> : <span />
}

I am using Flow.js to declare my types and it looks great:

However the default value is not extracted properly because the plugin has no clue about my default props.

How can I declare the default values for props?

I tried:

type PropTypes = {
  /**
   * Some description.
   * @default true
   */
  someProp?: boolean
}

I looked into how TypeScript does it and it also doesn't seem to work. Every addon expects you to use .defaultProps.