Actions for extended on-chain abilities from CDP

[camelop]

What changed? Why?

Implemented action to get ABI, action to check all balance from a wallet, action to read and invoke arbitary contracts.

Qualified Impact

The ABI action requires an environment variable of ETHERSCAN_API_KEY to access on-chain data.

Some example usage:

• try to get the abi of this contract , then analyze the functions
• How much of my token can spend? I mean, that address spends my token.
• You can retrieve my wallet address by tools. Use allowance function to query this.
• Now approve 1e-6 this token to . Notice: use approve, not transfer.

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2

[John-peterson-coinbase]

@camelop - the Python 0.1.0 release refactors the package into the Action/Wallet Provider pattern. it will land this week. Please rebase and update once it is available and we will be happy to accept 🚀