`flex: 0 1 auto` causes a "Failed to parse declaration" error

[Kingles]

the default value for the flex shorthand (0 1 auto) fails to be parsed by css-to-react-native when passed through styled-components

repro case:

import { styled } from 'styled-components/native'

const MyComponent = styled.View`
  flex: 0 1 auto;
`

[Kingles]

seems as if https://github.com/styled-components/css-to-react-native/blob/master/src/transforms/flex.js#L33 may hold the key here. Perhaps

  function matchesLengthOrAuto(tokenStream){
    return tokenStream.matches(LENGTH) || tokenStream.matches(AUTO);
  }
// ... later
    else if (flexBasis === undefined && matchesLengthOrAuto(tokenStream)) {
      flexBasis = tokenStream.lastValue;
    }
// ...

could be a workable solution.