How to fetch withdrawal fees

There are two types of withdrawal fees depending on the asset: range-based (for BTC) and flat (for other assets).

Range-Based Fee (Used for BTC Only)
Bitcoin (BTC) uses a range-based flat fee. The fee amount depends on how much BTC you're withdrawing, but it's fixed within each range. This ensures transparency and predictability.
Example JSON response:

{
  "status": "success",
  "message": "Successful",
  "data": {
    "fee": [
      {
        "min": 0,
        "max": 0.0054,
        "type": "flat",
        "value": 0.0002
      },
      {
        "min": 0.0054,
        "max": 0.0136,
        "type": "flat",
        "value": 0.0002
      },
      {
        "min": 0.0136,
        "max": 0.0271,
        "type": "flat",
        "value": 0.0003
      },
      {
        "min": 0.0271,
        "max": 0.0813,
        "type": "flat",
        "value": 0.0004
      },
      {
        "min": 0.0813,
        "max": 0.2033,
        "type": "flat",
        "value": 0.0004
      },
      {
        "min": 0.2033,
        "max": 2,
        "type": "flat",
        "value": 0.0004
      },
      {
        "min": 2,
        "max": 10.0001,
        "type": "flat",
        "value": 0.0005
      }
    ],
    "type": "range"
  }
}

How it works:

The fee array contains multiple ranges defined by min and max values.
Each range has a value that represents the flat withdrawal fee (in BTC).
The system determines which range the withdrawal amount falls into, and applies the corresponding value as the fee.
The fee remains the same for any amount within that range.

Examples:

If you're withdrawing 0.01 BTC, it falls between 0.0054 and 0.0136 → Fee is 0.0002 BTC
If you're withdrawing 0.03 BTC, it falls between 0.0271 and 0.0813 → Fee is 0.0004 BTC
If you're withdrawing 3 BTC, it falls between 2 and 10.0001 → Fee is 0.0005 BTC

Flat Fee (Used for Other Assets):
Other cryptocurrencies use a simple flat fee. The same fee is applied regardless of how much is being withdrawn.

Example JSON response:
```
{
  "status": "success",
  "message": "Successful",
  "data": {
    "fee": 1,
    "type": "flat"
  }
}
```
How it works:
- The fee value is the exact fee charged for any withdrawal amount.
- The type is flat, indicating the fee does not change based on the amount.
- This is the standard model for most assets except BTC.