> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-roethke-b20-upgrade-pages.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IB20.totalSupply

> Generated B20 reference for totalSupply().

## Signature

```solidity IB20.sol theme={null}
function totalSupply() external view returns (uint256);
```

| Field | Value |
| - | - |
| Selector | `0x18160ddd` |
| Canonical signature | `totalSupply()` |

## Description

Total token supply currently in circulation.

## Returns

Current total supply.

## Access Control

Read-only or ERC-20-standard access rules unless the NatSpec states otherwise.

## Policy Interaction

No direct policy interaction.

## Example

```solidity Usage Example theme={null}
IB20(target).totalSupply();
```