indicator: Get indicators by topic

curl 'https://api.worldbank.org/v2/topic/1/indicator?format=json&per_page=3'

import requests

resp = requests.get(
    "https://api.worldbank.org/v2/topic/1/indicator",
    params={
        'format': 'json',
        'per_page': '3',
    },
)
data = resp.json()

import zingu_apis

api = zingu_apis.api("world-bank")
result = api.fetch("topic/{topic_id}/indicator", format="json", per_page=3)

for item in result:
    print(item)

const resp = await fetch("https://api.worldbank.org/v2/topic/1/indicator?format=json&per_page=3");
const data = await resp.json();