You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: ecdsa_sha2.rb
    path of file: ./repos/hrr_rb_ssh/lib/hrr_rb_ssh/algorithm/publickey
    
    the code of the file until where you have to start completion: module HrrRbSsh
  module Algorithm
    class Publickey
      module EcdsaSha2
        include Loggable

        def initialize arg, logger: nil
          self.logger = logger
          begin
            new_by_key_str arg
          rescue OpenSSL::PKey::ECError
            new_by_public_key_blob arg
          end
     
    
        def verify signature, signature_blob
          signature_h = Signature.new(logger: logger).decode signature
          ecdsa_signature_blob_h = EcdsaSignatureBlob.new(logger: logger).decode signature_h[:'ecdsa signature blob']
          r = ecdsa_signature_blob_h[:'r']
          s = ecdsa_signature_blob_h[:'s']
          sign_asn1 = OpenSSL::ASN1::Sequence.new(
            [
              OpenSSL::ASN1::Integer.new(OpenSSL::BN.new(r)),
              OpenSSL::ASN1::Integer.new(OpenSSL::BN.new(s)),
            ]
          )
          sign_der = sign_asn1.to_der
          hash = OpenSSL::Digest.digest(self.class::DIGEST, signature_blob)
          signature_h[:'public key algorithm name'] == self.class::NAME && @publickey.dsa_verify_asn1(hash, sign_der)
        end