# Core protocol functions ### Create a contingent pool ``` function createContingentPool( PoolParams calldata _poolParams ) external; ``` where `PoolParams` contains the following list of parameters in the corresponding order:

Parameter	Type	Category	Description
`referenceAsset`	string	Event	The metric or event whose outcome will determine the payout for long and short position tokens.
`expiryTime`	uint96	Event	Expiration time of position tokens expressed as a unix timestamp in seconds. The value of the reference asset observed at that point in time determines the payoffs for long and short position tokens.
`floor`	uint256	Payoff	Value of the reference asset at or below which the long token pays out 0 and the short token 1 (max payout). Input expects an integer with 18 decimals.
`inflection`	uint256	Payoff	Value of the reference asset at which the long token pays out `gradient` and the short token `1-gradient`. Input expects an integer with 18 decimals.
`cap`	uint256	Payoff	Value of the reference asset at or above which the long token pays out 1 (max payout) and the short token 0. Input expects an integer with 18 decimals.
`gradient`	uint256	Payoff	Long token payout at inflection (value between 0 and 1). Input expects an integer with 18 decimals.
`collateralAmount`	uint256	Payoff	Collateral amount to be deposited into the pool to back the position tokens. Input expects an integer with collateral token decimals.
`collateralToken`	address	Settlement asset	Address of the ERC20 collateral token.
`dataProvider`	address	Oracle	Ethereum account (EOA or smart contract) that will report the final reference asset value.
`capacity`	uint256	Pool size	Maximum collateral amount that a contingent pool can accept. Choose a large number (e.g., `2**256 - 1`) for unlimited size. Input expects an integer with collateral token decimals.

### Adding liquidity Add liquidity to an existing pool using the following function: ``` function addLiquidity( uint256 _poolId, // Id of the pool that a user wants to add collateral to uint256 _collateralAmountIncr // Incremental collateral amount to be added to the pool expressed as an integer with collateral token decimals ) external; ``` ### Removing liquidity Remove liquidity from an existing pool using the following function: ``` function removeLiquidity( uint256 _poolId, // Id of the pool that a user wants to remove collateral from uint256 _amount // Number of position tokens to return (expressed as an integer with position token decimals) ) external; ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.divaprotocol.io/for-developers/smart-contracts/functions/core-protocol-functions.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.