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# frozen_string_literal: true
# Gender class to handle gender-related operations.
class Gender
MALE = 'male'
FEMALE = 'female'
# Returns all defined genders.
#
# @return [Array<String>] An array of all genders.
def self.all
[MALE, FEMALE]
end
# Checks if the provided gender is valid.
#
# @param gender [String] The gender to validate.
# @return [Boolean] True if the gender is valid, false otherwise.
def self.valid?(gender)
return false unless gender.is_a?(String)
all.include?(gender.downcase)
end
end
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