declare_interface: Extension<FileOptions, proto.cosmos_proto.InterfaceDescriptor[]> = ...

declare_interface declares an interface type to be used with accepts_interface and implements_interface. Interface names are expected to follow the following convention such that their declaration can be discovered by tools: for a given interface type a.b.C, it is expected that the declaration will be found in a protobuf file named a/b/interfaces.proto in the file descriptor set.

from extension: repeated cosmos_proto.InterfaceDescriptor declare_interface = 793021;