def build_configuration(env=nil)
      result = config_attributes[:default]
      result.deep_merge!(config_attributes[env.to_sym]) if env
      Entity.create(result)
    end
def build_configuration(env=nil)
      result = config_attributes[:default]
      result.deep_merge!(config_attributes[env.to_sym]) if env
      Entity.create(result)
    end
Build configuration object

 Params:
 - env {Symbol} Environment to build

 Returns: {Sequoia::Entity} builded configuration object