Function btck_chainstate_manager_create 

pub unsafe extern "C" fn btck_chainstate_manager_create(
    chainstate_manager_options: *const btck_ChainstateManagerOptions,
) -> *mut btck_ChainstateManager

@brief Create a chainstate manager. This is the main object for many validation tasks as well as for retrieving data from the chain and interacting with its chainstate and indexes.

@param[in] chainstate_manager_options Non-null, created by @ref btck_chainstate_manager_options_create. @return The allocated chainstate manager, or null on error.