Note:

• This API is closed by default. To enable this interface, both the vm.estimateEnergy and vm.supportConstant configuration items must be activated simultaneously in the node configuration file.
• estimateEnergy performs an estimation only; it does not generate an on-chain transaction or alter the current node's status. The energy_required field in its returned value represents the estimated energy amount, allowing the transaction's fee_limit to be set as energy_required X energy unit price.
• While the triggerconstantcontract API is sufficient for estimating the energy consumption of calling most on-chain smart contracts (e.g., USDD, BTT, TUSD), the estimateEnergy API offers greater accuracy when estimating the energy consumption for a small number of special contracts. Furthermore, the energy estimate returned by estimateEnergy is guaranteed to be sufficient for setting the transaction's fee_limit.
• Parameter encoding and decoding: Parameter and return value encoding and decoding

Returns