Mistake a typing of EthereumProvider.send

[odanado]

Expected behavior

The following code is valid.

import Web3 from 'web3'
const web3 = new Web3('')
web3.currentProvider.send('', [])

Because the interface of send conforms to EIP-1193.

Actual behavior

But I got an error when running tsc --noEmit command.

Steps to reproduce the behavior

index.ts

import Web3 from 'web3'
const web3 = new Web3('')
web3.currentProvider.send('', [])

tsconfig.json

{
  "compilerOptions": {
      "module": "commonjs",
      "lib": ["es6"],
      "target": "es6",
      "noImplicitAny": true,
      "noImplicitThis": true,
      "strictNullChecks": true,
      "strictFunctionTypes": true,
      "noEmit": true,
      "allowSyntheticDefaultImports": true,
      "baseUrl": ".",
      "paths": { 
          "web3-providers": ["."] 
      }
  }
}

command

$ yarn tsc --project tsconfig.json --noEmit

Error Logs

index.ts:3:1 - error TS2349: Cannot invoke an expression whose type lacks a call signature. Type '((method: string, parameters: any[]) => Promise<object>) | ((method: string, parameters: any[]) => Promise<object>) | ((method: string, callback: () => void) => Promise<object>)' has no compatible call signatures.

5 web3.currentProvider.send('', [])
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Versions

• npm: 5.6.0
• node: 8.11.3
• web3.js: 1.0.0-beta.41
• OS: macOS High Sierra