Awscr::Signer::V4::Signature
Calculates an AWS V4 signature for a given object using the provided scope
scope = Scope.new(...)
sig = Signature.new(scope, "some string")
puts sig.to_s # => the signature of the string with the given scope
scope = Scope.new(...)
sig = Signature.new(scope, Request.new(...))
puts sig.to_s # => the signature of the `Request`