import okhttp3.internal.commonHeader
import okhttp3.internal.commonHeaders
import okhttp3.internal.commonMethod
import okhttp3.internal.commonPatch
import okhttp3.internal.commonPost
import okhttp3.internal.commonPut
import okhttp3.internal.commonRemoveHeader
import okhttp3.internal.commonTag
import okhttp3.internal.commonToString

/**
 * An HTTP request. Instances of this class are immutable if their [body] is null or itself