Returns available collections
Examples
print(yf_get_available_collections())
#> [1] "SP500" "IBOV" "FTSE"
#> [4] "DOW" "testthat-collection"
Returns available collections
print(yf_get_available_collections())
#> [1] "SP500" "IBOV" "FTSE"
#> [4] "DOW" "testthat-collection"