def __init__(self, package, version):
        """Construct a new requirement.

        :param package: the package name.
        :param version: a semver compatible version specification.
        """
        self.package = package
        self.version = version
        if self.version and not re.match(r"[<=>~]", version[:2]):
            self.version = "=={}".format(self.version)
def projection_shortcut(inputs, name):
    return conv2d_fixed_padding(
        inputs=inputs,
        filters=filters_out,
        kernel_size=1,
        strides=strides,
        data_format=data_format,
        name=name)