in src/connection/BaseConnection.ts [248:262]
export function isBinary (contentType: string | string[]): boolean {
const binaryTypes = [
'application/vnd.mapbox-vector-tile',
'application/vnd.apache.arrow.stream',
'application/vnd.elasticsearch+arrow+stream',
'application/smile',
'application/vnd.elasticsearch+smile',
'application/cbor',
'application/vnd.elasticsearch+cbor'
]
return binaryTypes
.map(type => contentType.includes(type))
.includes(true)
}