docs: def decrypt(ciphertext_blob, encryption_context=None, grant_tokens=None,
              region=None, key=None, keyid=None, profile=None):
      '''
      Decrypt ciphertext.
  
      CLI example::
  
          salt myminion boto_kms.decrypt encrypted_ciphertext
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      r = {}
      try:
          plaintext = conn.decrypt(
              ciphertext_blob,
              encryption_context=encryption_context,
              grant_tokens=grant_tokens
          )
          r['plaintext'] = plaintext['Plaintext']
      except boto.exception.BotoServerError as e:
          r['error'] = __utils__['boto.get_error'](e)
      return r