def get_attribute_key(attribute, keys_case = :underscore)
			if keys_case == :underscore
				return attribute.to_s.delete("@").underscore
			elsif keys_case == :camelcase
				return attribute.to_s.delete("@").camelcase
			end
		end
def get_attribute_key(attribute, keys_case = :underscore)
			if keys_case == :underscore
				return attribute.to_s.delete("@").underscore
			elsif keys_case == :camelcase
				return attribute.to_s.delete("@").camelcase
			end
		end
Internal : Helper method to determinate the key name in the hash for the SOAP request

 Author:: jlopezn@neonline.cl

 === Parameters
 * attribute - the attribute name
 * keys_case - defines the case for the attribute name.
 ==== keys_case
 * :camelcase  - CamelCase
 * :underscore - underscore_case

 === Examples
   get_attribute_key("attribute_name", :underscore)
   # => "attribute_name"

   get_attribute_key("name", :camelcase)
   # => "AttributeName"

 Returns:: String with the attribute name for the key in the hash